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2017 South Korean presidential election#Nominations

{{Short description|Election in South Korea}}

{{Infobox election

| election_name = 2017 South Korean presidential election

| country = South Korea

| type = presidential

| ongoing = no

| previous_election = 2012 South Korean presidential election

| previous_year = 2012

| election_date = 9 May 2017

| next_election = 2022 South Korean presidential election

| next_year = 2022

| image_size = 150x150px

| turnout = 77.23% ({{increase}}1.39)

| image1 = File:Moon Jae-in, September 2019.jpg

| nominee1 = Moon Jae-in

| party1 = Democratic Party (South Korea, 2015)

| popular_vote1 = 13,423,800

| percentage1 = 41.09%

| image2 = Hong Joon-pyo 20221125.jpg

| nominee2 = Hong Joon-pyo

| party2 = Liberty Korea Party

| popular_vote2 = 7,852,849

| percentage2 = 24.04%

| image3 = AhnCheolSoo2022.png

| nominee3 = Ahn Cheol-soo

| party3 = People

| popular_vote3 = 6,998,342

| percentage3 = 21.42%

| image4 = Yoo Seong-min in Gangneung (Cropped).jpg

| nominee4 = Yoo Seung-min

| party4 = Bareun Party

| popular_vote4 = 2,208,771

| percentage4 = 6.76%

| image5 = Sim Sang-jung taking a commemorative photo with the Speaker of the National Assembly.jpg

| nominee5 = Sim Sang-jung

| party5 = Justice Party (South Korea)

| popular_vote5 = 2,017,458

| percentage5 = 6.17%

| map = {{Switcher

| 300px

| Results by municipal-level divisions

| 300px

| Results by provincial-level divisions

}}

| title = President

| before_election = Hwang Kyo-ahn
Acting

| before_party = Independent (politician)

| after_election = Moon Jae-in

| after_party = Democratic

}}

{{Politics of South Korea}}

{{wikinews|Moon Jae-in becomes President of South Korea}}

Early presidential elections were held in South Korea on 9 May 2017 following the impeachment and removal of Park Geun-hye.{{cite news |last=McCurry |first=Justin |date=9 March 2017 |title=South Korean president Park Geun-hye forced from office by constitutional court |url=https://www.theguardian.com/world/2017/mar/10/south-korea-president-park-geun-hye-constitutional-court-impeachment |work=The Guardian |access-date=10 March 2017}} The elections were conducted in a single round, on a first-past-the-post basis, and had originally been scheduled for 20 December 2017. However, they were brought forward after the decision of the Constitutional Court on 10 March 2017 to uphold the National Assembly's impeachment of Park, making them the first snap presidential elections held directly. Following procedures set out in the Constitution of South Korea, Prime Minister Hwang Kyo-ahn succeeded Park as the acting president. After Park was removed from office by the Constitutional Court's ruling, acting president Hwang announced he would not run for a term in his own right.{{cite web|script-title=ko:황교안 대선 불출마 선언|url=http://news.khan.co.kr/kh_news/khan_art_view.html?artid=201703151417001&code=910100|publisher=Kyunghyang Shinmun|date=15 March 2017|access-date=15 March 2017|language=ko}}{{Cite news|url=https://www.koreatimes.co.kr/www/nation/2017/03/356_225762.html|title=PM not to run for presidency|date=2017-03-15|work=The Korea Times|access-date=2017-05-17|language=en}}{{Cite news|url=https://www.nytimes.com/2017/03/15/world/asia/south-korea-election-park-geun-hye.html|title=South Korea to Elect New President in May, Government Says|last=Choe|first=Sang-hun|date=2017-03-15|work=The New York Times|access-date=2017-05-17|issn=0362-4331}}

Opinion polling before April consistently placed the Democratic Party's candidate, Moon Jae-in, runner-up in the 2012 election, as the front-runner. Second place in the opinion polls was initially held by former UN Secretary-General Ban Ki-moon, who declined to run in February, followed by Ahn Hee-jung, whilst he lost the Democratic primaries to Moon. Support for People Party founder Ahn Cheol-soo then surged, threatening Moon's lead in the polls throughout early April, before descending to approximately equal that of Liberty Korea Party's candidate, Hong Jun-pyo, in final polls.

Moon won the election with 41 percent of the vote, defeating his nearest opponent, Hong, by a nearly 2-to-1 margin. Under the Constitution of South Korea, if a president dies, resigns, or is removed by impeachment, a new election must take place within 60 days. As a result, unlike previous presidential elections, president-elect Moon took office immediately upon the confirmation of the result by the National Election Commission, with the inauguration at the National Assembly on the same day.

{{TOC limit|3}}

Background

Park Geun-hye of the conservative Saenuri Party (renamed just prior to the election in February 2017 as the Liberty Korea Party) won the previous presidential election in 2012, succeeding Lee Myung-bak of the same party.

The Saenuri Party lost the parliamentary election in April 2016, with opposition parties including liberal Democratic Party and People Party winning a majority in the National Assembly. Commentators described the result as leaving Park a lame duck president, as South Korean presidents are barred from reelection.{{cite news|url=http://asia.nikkei.com/Politics-Economy/Policy-Politics/South-Korean-politicians-jostle-to-succeed-lamest-of-ducks|title=South Korean politicians jostle to succeed lamest of ducks|last=Minegishi|first=Hiroshi|newspaper=Nikkei Asian Review|date=15 April 2016|access-date=17 April 2016}}{{cite news|url=https://www.reuters.com/article/us-southkorea-election-idUSKCN0XA2LC|title=Vote defeat for South Korea's Park raises 'lame duck' prospect|publisher=Reuters|date=14 April 2016|access-date=17 April 2016}}{{cite news|url=http://www.theaustralian.com.au/news/world/conservative-rout-leaves-south-koreas-park-geunhye-a-lame-duck/news-story/16ca1208ddd42854cf92dae327574176?nk=c07dd96332972d39c73e50067a02b460-1460645891|title=Conservative rout leaves South Korea's Park Geun-hye a lame duck|newspaper=The Australian|date=14 April 2016|access-date=17 April 2016}} and the Nikkei Asian Review noted that, in the wake of her "crushing defeat", "rivals sense a prime opportunity to complete the power shift in the December 2017 presidential vote". The Korea Times stated: "The drama of deals and power struggles for next year's election has already begun."{{cite news|url=https://www.koreatimes.co.kr/www/news/nation/2016/04/116_202545.html|title=Attention to shift to 2017 presidential race|last=Jun|first=Ji-hye|newspaper=The Korea Times|date=13 April 2016|access-date=17 April 2016}}

=Impeachment of President Park Geun-hye=

{{main|Impeachment of Park Geun-hye}}

On 9 December 2016, President Park was impeached by the National Assembly by a vote of 234 for and 56 against (with seven invalid votes and two abstentions) after her implication in the 2016 South Korean political scandal. The Constitutional Court reviewed the motion of impeachment. Per the Constitution, Park's powers were suspended until the Constitutional Court could review the case, and Prime Minister Hwang Kyo-ahn became acting president.

The Constitutional Court had 180 days to decide whether to uphold the impeachment. On 10 March 2017, Park was formally removed from office, with a unanimous ruling by all eight of the Constitutional Court's justices supporting her impeachment. A presidential election would have to be held within 60 days. In the interim, Prime Minister Hwang served out the remainder of the 18th term until election day.{{citation needed|date=August 2021}}

The presidential election had previously been scheduled for 20 December, with Park barred from running due to the constitutional ban on any sort of presidential reelection. However, with Park's removal from office, the elections were brought forward to 9 May in order to ensure that a new president would be able to take office within 60 days of Park's removal, as required by the Constitution.

Registered candidates

File:South Korea 2017 Presidential Election Posters.jpg

The six parties represented in the National Assembly are the social liberal Democratic Party, the conservative Liberty Korea Party, the centrist People Party, the center-right Bareun Party, the progressive Justice Party, and pro-Park Geun-hye conservative Saenuri Party.

Ballot numbers for party candidates were given according to the candidate's party seat distribution in the National Assembly. Ballot numbers for independent and minor party candidates were determined through a random lottery by the National Election Commission.

A record number of 15 candidates registered, out of which two withdrew before election day.

class="wikitable" style="float: margin:10px"
style="background:#eee; text-align:center;"

| style="padding:10px; width:125px;" | 1

| style="padding:10px; width:125px;" | 2

| style="padding:10px; width:125px;" | 3

| style="padding:10px; width:125px;" | 4

| style="padding:10px; width:125px;" | 5

| style="padding:10px; width:125px;" | 6

| style="padding:10px; width:125px;" | 7

| style="padding:10px; width:125px;" | 8

| style="padding:10px; width:125px;" | 9

| style="padding:10px; width:125px;" | 10

| style="padding:10px; width:125px;" | 11 (withdrew)

| style="padding:10px; width:125px;" | 12

| style="padding:10px; width:125px;" | 13 (withdrew)

| style="padding:10px; width:125px;" | 14

| style="padding:10px; width:125px;" | 15

style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Moon
Jae-in

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Hong
Jun-pyo

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Ahn
Cheol-soo

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Yoo
Seung-min

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Sim
Sang-jung

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Cho
Won-jin

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Oh
Young-guk

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Chang
Sŏng-min

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Lee
Jae-oh

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" |Kim Seon-dong

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Nam
Jae-jun

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Lee
Kyung-hee

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Kim
Jung-son

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Yoon
Hong-sik

| style="width:90px; padding:2px 0 6px; font:17px georgia,arial; text-align:center;" | Kim
Min-chan

style=" text-align:center;" | {{Color box|#004EA2|border=darkgray}} Democratic

| style=" text-align:center;" | {{Color box|#C8161E|border=darkgray}} Liberty Korea

| style=" text-align:center;" | {{Color box|#046240|border=darkgray}} People's

| style=" text-align:center;" | {{Color box|#00B1EB|border=darkgray}} Bareun

| style=" text-align:center;" | {{Color box|#FFCC00|border=darkgray}} Justice

| style=" text-align:center;" | {{Color box|#DA1F49|border=darkgray}} Saenuri

| style=" text-align:center;" | {{Color box|#800080|border=darkgray}} Economic Patriots

| style=" text-align:center;" | {{Color box|#FFA500|border=darkgray}} Grand National United

| style=" text-align:center;" | {{Color box|#085c81|border=darkgray}} Evergreen Korea

| style=" text-align:center;" | {{Color box|#FF8C00|border=darkgray}} People's United

| style=" text-align:center;" | {{Color box|#FF6347|border=darkgray}} United Korea

| style=" text-align:center;" | {{Color box|#FFFF66|border=darkgray}} Korean Nationalist

| style=" text-align:center;" | {{Color box|#C9151E|border=darkgray}} Future Korea Peninsula

| style=" text-align:center;" | {{Color box|#800080|border=darkgray}} Hongik

| style=" text-align:center;" | {{Color box|#808080|border=darkgray}} Independent

Nominations

=Democratic Party=

==Candidate==

class="wikitable" style="font-size:90%; text-align:center;"
style="background:#f1f1f1;" colspan="30"|

File:2015 Logo of the Democratic Party of Korea ver. Sky blue+Blue.svg Democratic Party candidate

style=" font-size:135%; background:#004EA2; width:200px;"| Moon Jae-in
File:Moon Jae-in, September 2019.jpg
Leader of the
Democratic Party
{{small|(2015–2016)}}

==Primary==

Candidates were determined by an open primary of citizens who registered as a voter between February 15 to March 9, and March 12 to March 21. Overall, 2,144,840 people registered as a primary voter, making the 2017 primary the largest in Korean history.{{cite web |script-title=ko:민주당 대선 후보 경선인단 200만 명 돌파 |url = http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=052&aid=0000988694 |website=YTN |publisher=Naver |access-date = 3 April 2017 }}{{cite web |script-title=ko:민주당 선거인단 214만명 마감…"정당사 전무후무한 일" |url = http://news.naver.com/main/read.nhn?mode=LSD&mid=shm&sid1=100&oid=008&aid=0003842602 |website = MoneyToday |publisher=Naver |access-date = 3 April 2017 }}

The primary was conducted from March 22 to April 3, with the voting base divided by four regions: Honam, Yeongnam, Hoseo and Seoul Capital Area, Gangwon Province, and Jeju Province as a single region. 71.6% of the registered voters voted in the primary, putting the vote total at 1,642,640.{{cite web |script-title=ko:[종합]민주당 최종 누적집계…文 57%> 安 21.5%> 李 21.2% |url = http://news.naver.com/main/ranking/read.nhn?mid=etc&sid1=111&rankingType=popular_day&oid=003&aid=0007868185&date=20170403&type=1&rankingSeq=3&rankingSectionId=100 |website=Newsis |publisher=Naver |access-date = 3 April 2017 }}

Candidates were:

  • Moon Jae-in, former party chairman (2015–16), member of the National Assembly for Busan Sasang District (2012–16), 2012 Democratic United Party presidential nominee
  • Ahn Hee-jung, Governor of South Chungcheong Province (2010–2018){{cite web |url = http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=081&aid=0002795208 |title = 안희정, 대선 예비후보 등록…"미완의 역사 완성하겠다" |language = ko |publisher=Naver News |date = 2 February 2017 |access-date = 10 March 2017 }}
  • Choi Sung, Mayor of Goyang (2010–present), former member of the National Assembly for Goyang (2004–08){{cite web |author = 경기일보(Kyeonggi Daily News) |url = http://www.kyeonggi.com/?mod=news&act=articleView&idxno=1304950 |script-title=ko:기사본문-최성 고양시장, 더민주 예비 후보 등록 대선 레이스 돌입 – 수도권 종합일간지 경기일보, 경기닷컴 – 정치, 경제, 사회, 문화, 스포츠, 연예, 포토, 경기TV, 뉴스, 기사 제공 |publisher = Kyeonggi.com |date = 26 July 2016 |access-date = 10 March 2017 }}
  • Lee Jae-myung, Mayor of Seongnam (2010–18){{cite web |url = http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=001&aid=0008995315 |title = 이재명, 민주 예비후보 등록…YS·DJ 참배 후 광주行 |language = ko |publisher=Naver News |date = 31 January 2017 |access-date = 10 March 2017 }}

class="wikitable mw-collapsible mw-collapsed" style="text-align:center"

|+ {{nowrap|Polling for the Democratic primary}}

style="height:55px; background:#e9e9e9;"

! style="width:90px;" rowspan="3"| Polling firm/Link

! style="width:110px;" rowspan="3"| Fieldwork date

! style="width:35px;" rowspan="3"| Sample
size

! style="width:35px;"| Lee Jae-myung

! style="width:35px;"| Moon Jae-in

! style="width:35px;"| Ahn Hee-jung

! style="width:35px;"| Kim Boo-kyum

! style="width:35px;"| Park Won-soon

! style="width:35px;"| Kim Jong-in

! style="width:35px;"| Choi Sung

style="background:{{party color|Democratic Party}};"

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

{{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

[http://www.nesdc.go.kr/result/201703/FILE_201703100650139410.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.10

| {{small|374}}

| 21.9%

| {{party shading/Democratic Party (South Korea, 2015)}}|52.7%

| 22.5%

| –

| –

| –

| 0.4%

[http://www.nesdc.go.kr/result/201703/FILE_201703011252414840.pdf.htm R&Search] {{Webarchive|url=https://web.archive.org/web/20170612171959/http://www.nesdc.go.kr/result/201703/FILE_201703011252414840.pdf.htm |date=12 June 2017 }}

| 17.02.27–17.02.28

| {{small|1,111}}

| 15.5%

| {{party shading/Democratic Party (South Korea, 2015)}}|38.0%

| 29.8%

| –

| –

| –

| 0.2%

[http://www.nesdc.go.kr/portal/bbs/B0000005/list.do?menuNo=201455 Korea Research]

| 17.02.05–17.02.06

| {{small|2,016}}

| 8.8%

| {{party shading/Democratic Party (South Korea, 2015)}}|36.9%

| 26.2%

| 2.4%

| –

| –

| –

[http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=018&aid=0003739761 Realmeter]

| 17.02.01

| {{small|528}}

| 13.9%

| {{party shading/Democratic Party (South Korea, 2015)}}|31.4%

| 23.7%

| 4.1%

| –

| 3.7%

| 0.5%

[|[http://www.nesdc.go.kr/result/201702/FILE_201701261006285960.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.01.16–17.01.17

| 1,004

| 13.5%

| {{party shading/Democratic Party (South Korea, 2015)}}|32.8%

| 10.8%

| 5.6%

| 5.3%

| 5%

| 1.1%

==Results==

class="wikitable" style="float: margin:10px"
style="background:#eee; text-align:center;"

| style="padding:10px; width:98px;"| Candidate

| style="padding:10px; width:98px;"| Place

| style="padding:10px; width:98px;"| Votes

| style="padding:10px; width:98px;"| Percentage

style="width:90px; padding:2px 0 6px; text-align:center;"| Moon Jae-in

| style="background: #004EA2; text-align:center"| {{color|white|Nominated}}

| style="width:90px; padding:2px 0 6px; text-align:center;"| 936,419

| style="width:90px; padding:2px 0 6px; text-align:center;"| 57.0%

style="width:90px; padding:2px 0 6px; text-align:center;"| Ahn Hee-jung

| style="background:silver; text-align:center"| 2nd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 353,631

| style="width:90px; padding:2px 0 6px; text-align:center;"| 21.5%

style="width:90px; padding:2px 0 6px; text-align:center;"| Lee Jae-myung

| style="background: silver; text-align:center"| 3rd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 347,647

| style="width:90px; padding:2px 0 6px; text-align:center;"| 21.2%

style="width:90px; padding:2px 0 6px; text-align:center;"| Choi Sung

| style="background:silver; text-align:center"| 4th

| style="width:90px; padding:2px 0 6px; text-align:center;"| 4,943

| style="width:90px; padding:2px 0 6px; text-align:center;"| 0.3%

style="background:#eee;"

| colspan=2|

| style="width:90px; padding:2px 0 6px; text-align:center;"| 1,642,677

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

=Liberty Korea Party=

==Candidate==

class="wikitable" style="font-size:90%; text-align:center;"
style="background:#f1f1f1;" colspan="30"|

File:Logo of the Liberty Korea Party.svgLiberty Korea Party candidate

style=" font-size:135%; background:#C8161E; width:200px;"| Hong Jun-pyo
File:Hong Joon-pyo 20221125.jpg
Governor of
South Gyeongsang Province
{{small|(2012–2017)}}

==Primary==

Candidate was determined by a combination of opinion polls, conducted between March 30 to March 31 (50%), and the votes cast by the delegates at the party convention held on March 31 (50%).

Candidates were:

  • Lee In-je, member of the National Assembly until 2016, former Minister of Labour, former Governor of Gyeonggi Province and 1997 presidential candidate{{cite web|url=http://www.kyeongin.com/main/view.php?key=20170115010004749 |script-title=ko:경인일보 : 새누리당 이인제 前의원 "대선 출마"… 네번째 도전 |publisher=Kyeongin.com |access-date=10 March 2017}}
  • Hong Jun-pyo, incumbent governor of South Gyeongsang Province (2012–present){{cite web|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=469&aid=0000186383 |title=원유철 대선 출마 선언… 안상수도 출사표 채비 |language=ko|publisher=Naver News |date=3 February 2017 |access-date=10 March 2017}}
  • Kim Kwan-yong, incumbent governor of North Gyeongsang Province (2006–present)
  • Kim Jin-tae, member of the National Assembly for Chuncheon (2012–present)

== Results ==

class="wikitable" style="float: margin:10px"
style="background:#eee; text-align:center;"

| style="padding:10px; width:98px;"| Candidate

| style="padding:10px; width:98px;"| Place

| style="padding:10px; width:98px;"| Opinion Polls

| style="padding:10px; width:98px;"| Delegate Votes

| style="padding:10px; width:98px;"| Aggregated Result

style="width:90px; padding:2px 0 6px; text-align:center;"| Hong Jun-pyo

| style="background: #C8161E; text-align:center"| {{color|white|Nominated}}

| style="width:90px; padding:2px 0 6px; text-align:center;"| 46.7%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 62.9%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 54.15%

style="width:90px; padding:2px 0 6px; text-align:center;"| Kim Jin-tae

| style="background:silver; text-align:center"| 2nd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 17.5%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 21.1%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 19.30%

style="width:90px; padding:2px 0 6px; text-align:center;"| Lee In-je

| style="background: silver; text-align:center"| 3rd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 24.6%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 5.1%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 14.85%

style="width:90px; padding:2px 0 6px; text-align:center;"| Kim Kwan-yong

| style="background:silver; text-align:center"| 4th

| style="width:90px; padding:2px 0 6px; text-align:center;"| 11.2%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 12.2%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 11.70%

style="background:#eee;"

| colspan=2|

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

=People's Party=

==Candidate==

class="wikitable" style="font-size:90%; text-align:center;"
style="background:#f1f1f1;" colspan="30"|

File:Logo of the people's party (south korea).svgPeople's Party candidate

style="width:3em; font-size:135%; background:#046240; width:200px;"| Ahn Cheol-soo
File:Ahn Cheol-Soo.jpg
Leader of the
People Party
{{small|(2016)}}

==Primary==

{{main|People's Party South Korean presidential primaries, 2017}}

Candidate was chosen by an open primary (80%) and an opinion poll conducted between April 4 and 5 (20%). The primary was conducted through March 25 to April 4, with 7 regional primaries being held. Ahn Cheol-soo was declared winner of the primary on April 4.{{cite web|script-title=ko:손학규·박주선, 安 경선 승리에 축하 "대선승리 위해 함께 하겠다"|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=shm&sid1=100&oid=018&aid=0003790751|website=Edaily|publisher=Naver|access-date=5 April 2017}}

The candidate were:

  • Ahn Cheol-soo, former party co-chairman (2016), former co-chairman of the New Politics Alliance for Democracy (March–July 2014), withdrawn presidential candidate in 2012, founder of AhnLab, Inc., member of the National Assembly for Nowon District (2013–present)
  • Sohn Hak-kyu, former member of the National Assembly for Seongnam (2011–12), former governor of Gyeonggi Province (2002–06), former assemblyman for Gwangmyeong (1993–98, 2000–02){{cite web|author=기사입력 2017.02.07 오후 6:26 최종수정 2017.02.07 오후 6:30 |url=http://m.news.naver.com/read.nhn?mode=LSD&mid=sec&sid1=100&oid=052&aid=0000971446 |title=손학규, 국민의당... |language=ko|publisher=Naver News |access-date=10 March 2017}}
  • Park Joo-seon, deputy speaker of the National Assembly (2016–present), member of the National Assembly (2000–2004, 2008–present)

==Results==

class="wikitable" style="float: margin:10px"
style="background:#eee; text-align:center;"

| style="padding:10px; width:98px;"| Candidate

| style="padding:10px; width:98px;"| Place

| style="padding:10px; width:98px;"| Votes

| style="padding:10px; width:98px;"| Percentage

style="width:90px; padding:2px 0 6px; text-align:center;"| Ahn Cheol-soo

| style="background: #046240; text-align:center"| {{color|white|Nominated}}

| style="width:90px; padding:2px 0 6px; text-align:center;"| 133,927

| style="width:90px; padding:2px 0 6px; text-align:center;"| 72.71%

style="width:90px; padding:2px 0 6px; text-align:center;"| Sohn Hak-kyu

| style="background:silver; text-align:center"| 2nd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 35,696

| style="width:90px; padding:2px 0 6px; text-align:center;"| 19.38%

style="width:90px; padding:2px 0 6px; text-align:center;"| Park Joo-seon

| style="background: silver; text-align:center"| 3rd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 14,561

| style="width:90px; padding:2px 0 6px; text-align:center;"| 6.92%

style="background:#eee;"

| colspan=2|

| style="width:90px; padding:2px 0 6px; text-align:center;"| 184,768

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

=Bareun Party=

==Candidate==

class="wikitable" style="font-size:90%; text-align:center;"
style="background:#f1f1f1;" colspan="30"|

File:Bareun Party logo.svgBareun Party candidate

style="width:3em; font-size:135%; background:{{party color|Bareun Party}}; width:200px;"| Yoo Seong-min
File:Yoo Seong-min in Gangneung (Cropped).jpg
Member of the
National Assembly
{{small|(2005– )}}

==Primary==

Candidate was determined by a combination of votes from an evaluation commission based on 4 debates, held in different region of the country (40%), votes from the party members (30%), and public opinion polls (30%).

Candidates were:

  • Yoo Seong-min, member of the National Assembly for Daegu (2004–present){{cite web|url=http://www.speconomy.com/news/articleView.html?idxno=78369 |script-title=ko:유승민, 대선 출마 공식 선언…'재벌 총수·공직자 부정부패 손본다' – 스페셜경제 |date=20 February 2017 |publisher=Speconomy.com |access-date=10 March 2017}}
  • Nam Kyung-pil, incumbent governor of Gyeonggi Province (2014–present)

Yoo Seong-min was nominated as the candidate of Baerun Party on March 28.{{cite web|script-title=ko:유승민, 바른정당 대선후보로 선출…62.9% 득표(3보)|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=001&aid=0009143114|website=Yohnhap News Agency|publisher=Naver|access-date=29 March 2017}}

== Results ==

class="wikitable" style="float: margin:10px"
style="background:#eee; text-align:center;"

| style="padding:10px; width:98px;"| Candidate

| style="padding:10px; width:98px;"| Place

| style="padding:10px; width:150px;"| Votes

| style="padding:10px; width:98px;"| Percentage

style="width:90px; padding:2px 0 6px; text-align:center;"| Yoo Seung-min

| style="background: #08A3D9; text-align:center"| {{color|white|Nominated}}

| style="width:90px; padding:2px 0 6px; text-align:center;"| 36,593

| style="width:90px; padding:2px 0 6px; text-align:center;"| 62.9%

style="width:90px; padding:2px 0 6px; text-align:center;"| Nam Kyung-pil

| style="background:silver; text-align:center"| 2nd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 21,625

| style="width:90px; padding:2px 0 6px; text-align:center;"| 37.1%

style="background:#eee;"

| colspan=2|

| style="width:90px; padding:2px 0 6px; text-align:center;"| 58,218

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

=Justice Party=

==Candidate==

class="wikitable" style="font-size:90%; text-align:center;"
style="background:#f1f1f1;" colspan="30"|

File:Jeongeuidang logo.svgJustice Party candidate

style="width:3em; font-size:135%; background:{{party color|Justice Party (South Korea)}}; width:200px;"| Sim Sang-jung
File:Sim Sang-jung taking a commemorative photo with the Speaker of the National Assembly.jpg
Leader of the
Justice Party
{{small|(2015– )}}

==Primary==

Candidates were determined by a closed voting of the party members. Candidates were:

  • Sim Sang-jung, Chairperson of the Justice Party (2015–present), member of the National Assembly for Goyang (2004– 2008, 2012–present) {{cite web|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=003&aid=0007729470 |title=심상정 첫 대선공약 "출산휴가 120일로 늘리겠다" |language=ko|publisher=Naver News |date=23 January 2017 |access-date=10 March 2017}}
  • Kang Sang-goo, vice president of the Justice Party education institute

Sim Sang-jung was nominated as the candidate of the Justice Party on February 16.{{cite web|script-title=ko:심상정 대표 '승리의 V'|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=001&aid=0009042431|website=Yonhap News Agency|publisher=Naver|access-date=29 March 2017}}

== Results ==

class="wikitable" style="float: margin:10px"
style="background:#eee; text-align:center;"

| style="padding:10px; width:98px;"| Candidate

| style="padding:10px; width:98px;"| Place

| style="padding:10px; width:150px;"| Votes

| style="padding:10px; width:98px;"| Percentage

style="width:90px; padding:2px 0 6px; text-align:center;"| Sim Sang-jung

| style="background: #FFCC00; text-align:center"| Nominated

| style="width:90px; padding:2px 0 6px; text-align:center;"| 8,209

| style="width:90px; padding:2px 0 6px; text-align:center;"| 80.7%

style="width:90px; padding:2px 0 6px; text-align:center;"| Kang Sang-goo

| style="background:silver; text-align:center"| 2nd

| style="width:90px; padding:2px 0 6px; text-align:center;"| 1,962

| style="width:90px; padding:2px 0 6px; text-align:center;"| 19.3%

style="background:#eee;"

| colspan=2|

| style="width:90px; padding:2px 0 6px; text-align:center;"| 10,239

| style="width:90px; padding:2px 0 6px; text-align:center;"| 100%

=Other Nominations=

Notable non-candidates

  • Hwang Kyo-ahn, acting President (2016–2017), Prime Minister (2015–2017), former Minister of Justice (2013–15) announced that he would not be running for the presidency on 15 March 2017.
  • Kim Boo-kyum, member of the National Assembly for Daegu (2016–present), former member for Gunpo (2000–12),{{cite news|url=http://koreajoongangdaily.joins.com/news/article/Article.aspx?aid=3017416|title=Split voting could boost fate of People's Party|newspaper=Korea JoongAng Daily|date=12 April 2016|access-date=24 April 2016}} announced that he would not be running for the presidency on 7 February 2017.{{cite web|url=http://news.naver.com/main/ranking/read.nhn?mid=etc&sid1=111&rankingType=popular_day&oid=421&aid=0002547924&date=20170207&type=1&rankingSeq=3&rankingSectionId=100 |title=김부겸, 대선불출마 선언…"정권교체 밀알될 것" |language=ko|publisher=Naver News |date=7 February 2017 |access-date=10 March 2017}}
  • Ban Ki-moon, Secretary-General of the United Nations (2007–2016), was considering running as a non-partisan candidate but announced on 1 February 2017 that he would not be running for the presidency.{{cite web|url=http://www.cbc.ca/news/world/ban-ki-moon-south-korea-1.3961159 |title=Ban Ki-moon rules out presidential run in South Korea – World – CBC News |publisher=Cbc.ca |date=1 February 2017 |access-date=10 March 2017}}{{cite news|url=http://www.koreaherald.com/view.php?ud=20150929000087|title=Ban looms large in S. Korea's opinion polls|newspaper=The Korea Herald|date=29 September 2015|access-date=17 April 2016}}
  • Park Won-soon, Mayor of Seoul (2011–present), announced that he would not be running for the presidency on 26 January 2017.{{cite web|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=055&aid=0000498583 |title=박원순, 대선 불출마 선언…"국민 마음 사지 못해" |language=ko|publisher=Naver News |date=26 January 2017 |access-date=10 March 2017}}
  • Oh Se-hoon, former Mayor of Seoul (2006–2011), announced that he would not be running for the presidency on 13 January 2017.{{cite web|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=422&aid=0000236717 |title=오세훈 전 서울시장 "대선 불출마하겠다" |language=ko|publisher=Naver News |date=13 January 2017 |access-date=10 March 2017}}
  • Kim Moo-sung, former chairman of the Saenuri Party (2014–2016), announced that he would not be running for the presidency on 24 November 2016.{{cite web|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=103&oid=144&aid=0000462334 |title=김무성 대선 불출마 선언…"보수의 썩은 환부 도려내겠다" |language=ko|publisher=Naver News |date=24 November 2016 |access-date=10 March 2017}}

Campaign

=Official campaign=

The official campaign begun on April 17 and ended on midnight of May 8.{{cite web|script-title=ko:공식 선거전 내일 시작…후보 15명 역대 최다|url=http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=100&oid=056&aid=0010444657|website=Korean Broadcasting System|publisher=Naver|access-date=16 April 2017}}

=Debates=

class="wikitable" text-align:center;"

!style="background:#B0C4DE;" colspan="15"|South Korean Presidential Election, 2017

style="white-space:nowrap;" rowspan="3"|Date

!rowspan="3"|Organizers

!rowspan="3"|Moderators

!scope="col" colspan="5"|{{Colors|black|#90ff90| P }} Present {{Colors|black|#ccffcc| I }} Invitee {{Colors|black|#ff9090| NI }} Non-invitee {{Colors|black|#ff9090| A }} Absent invitee

!rowspan="3"|Notes

scope="col" style="width:90px;"|Sim Sang-jung

!scope="col" style="width:90px;"|Moon Jae-in

!scope="col" style="width:90px;"|Ahn Cheol-soo

!scope="col" style="width:90px;"|Yoo Seung-min

!scope="col" style="width:90px;"|Hong Jun-pyo

{{party color cell|Justice Party (South Korea)}}

!{{party color cell|Democratic Party (South Korea, 2015)}}

!{{party color cell|People Party (South Korea, 2016)}}

!{{party color cell|Bareun Party}}

!{{party color cell|Liberty Korea Party}}

style="white-space:nowrap;text-align:left;"|14 April
10:00 KST

|style="white-space:nowrap;text-align:left;"|SBS
Journalists Association of Korea

|style="white-space:nowrap;text-align:left;"|Kim Sung-joon

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|The debate was recorded and broadcast as live at 10 pm KST on the same day on SBS.{{Cite web|url=http://journalist.or.kr/news/article.html?no=41463|script-title=ko:기자협회, 대선후보 첫 합동토론회 - 한국기자협회}}{{cite news|title='TV토론 승자=차기 대통령'…TV토론, 선거 막판 변수로|url=http://news.naver.com/main/ranking/read.nhn?mid=etc&sid1=111&rankingType=popular_day&oid=421&aid=0002672940&date=20170414&type=1&rankingSeq=4&rankingSectionId=100|agency=News 1|via=Naver|access-date=14 April 2017}}{{cite news|script-title=ko:대선 토론회 방송, 오늘부터 시작…일정과 주제는?|url=http://entertain.naver.com/read?oid=057&aid=0001111236|publisher=Maeil Broadcasting Network|via=Naver|access-date=14 April 2017}}

style="white-space:nowrap;text-align:left;"|19 April
22:00 KST

|style="white-space:nowrap;text-align:left;"|KBS

|style="white-space:nowrap;text-align:left;"|Park Young-hwan

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|

style="white-space:nowrap;text-align:left;"|23 April
20:00 KST

|style="white-space:nowrap;text-align:left;"|NEC

|style="white-space:nowrap;text-align:left;"|Kim Jin-suk

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|

style="white-space:nowrap;text-align:left;"|25 April
21:00 KST

|style="white-space:nowrap;text-align:left;"|JTBC
The Korean Political Science Association

|style="white-space:nowrap;text-align:left;"|Sohn Suk-hee

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|

style="white-space:nowrap;text-align:left;"|28 April
20:00 KST

|style="white-space:nowrap;text-align:left;"|NEC

|style="white-space:nowrap;text-align:left;"|Park Yong-chan

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|

style="white-space:nowrap;text-align:left;"|2 May
20:00 KST

|style="white-space:nowrap;text-align:left;"|NEC

|style="white-space:nowrap;text-align:left;"|Lee Jung-hee

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|{{Yes|P}}

|

colspan="11"| Candidate viewed as "most convincing" in each debate
rowspan="2" colspan="2"| Debate

! rowspan="2"| Poll source

! style="width:90px;"| Sim Sang-jung

! style="width:90px;"| Moon Jae-in

! style="width:90px;"| Ahn Cheol-soo

! style="width:90px;"| Yoo Seong-min

! style="width:90px;"| Hong Jun-pyo

! rowspan="2"| Notes

{{party color cell|Justice Party (South Korea)}}

| {{party color cell|Democratic Party (South Korea, 2015)}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|Bareun Party}}

| {{party color cell|Saenuri Party}}

rowspan="3" colspan="2"| 14 April

| [http://www.nesdc.go.kr/result/201704/FILE_201704140529330110.pdf.htm Realmeter] {{Webarchive|url=https://web.archive.org/web/20170419163811/http://www.nesdc.go.kr/result/201704/FILE_201704140529330110.pdf.htm |date=19 April 2017 }}

| 12.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 33.7%

| 21.7%

| 11.8%

| 9.6%

| {{cite web|script-title=ko:[리얼미터] TV토론 후 '문재인45% >안철수31% >홍준표9%'|url=http://www.polinews.co.kr/news/article.html?no=310573|website=Polinews| date=15 April 2017 |access-date=15 April 2017}}

[http://www.nesdc.go.kr/result/201704/FILE_201704240614005070.pdf.htm JoonAng Ilbo]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 13.1%

| 22.3%

| 16.5%

| style="background:#D5FAFF"| 25.0%

| 5.4%

|

[http://www.nesdc.go.kr/result/201704/FILE_201704181037318880.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 15.1%

| 21.2%

| 16.2%

| style="background:#D5FAFF"| 28.1%

| 7.5%

|

rowspan="1" colspan="2"| 19 April

| [http://ksoi.org/news-view.php?nno=30 KSOI] {{Webarchive|url=https://web.archive.org/web/20170424004003/http://ksoi.org/news-view.php?nno=30 |date=24 April 2017 }}

| style="background:#FFFAD5"| 21.9%

| 15.0%

| 11.1%

| 21.5%

| 6.5%

|

rowspan="2" colspan="2"| 23 April

| [http://www.nesdc.go.kr/result/201704/FILE_201704240804021180.pdf.htm JoonAng Ilbo] {{Webarchive|url=https://web.archive.org/web/20170501153654/http://www.nesdc.go.kr/result/201704/FILE_201704240804021180.pdf.htm |date=1 May 2017 }}

| 22.0%

| 17.4%

| 9.0%

| style="background:#D5FAFF"| 23.7%

| 6.7%

|

[http://www.hankookilbo.com/v/c9dd7de7bc274141997e764087569289 Hankook Research]

| style="background:#FFFAD5"| 27.2%

| 12.6%

| 5.1%

| 22.1%

| 5.9%

|

rowspan="2" colspan="2"| 25 April

| [http://www.nesdc.go.kr/result/201704/FILE_201704260739229931.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| style="background:#FFFAD5"| 40.6%

| 13.2%

| 6.1%

| 14.4%

| 9.9%

|

[http://gallupkorea.blogspot.kr/2017/04/2562017-4-4-tv.html Gallup Korea]

| style="background:#FFFAD5"| 30%

| 18%

| 6%

| 14%

| 9%

|

rowspan="5" colspan="2"| 28 April

| [https://www.naeil.com/news_view/?id_art=236013 The Opinion]

| style="background:#FFFAD5"| 35.8%

| 13.5%

| 5.9%

| 14.6%

| 11.5%

|

[http://news.joins.com/article/21534716 JoongAng Ilbo]

| style="background:#FFFAD5"| 38.1%

| 11.5%

| 4.5%

| 16.6%

| 10.0%

|

[http://www.nesdc.go.kr/result/201705/FILE_201705010334522551.pdf.htm Gallup Korea]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| style="background:#FFFAD5"| 34.8%

| 14.4%

| 4.4%

| 12.7%

| 13.3%

|

[http://www.nesdc.go.kr/result/201705/FILE_201705031256381210.pdf.htm Research & Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| style="background:#FFFAD5"| 41.8%

| 9.3%

| 4.0%

| 18.4%

| 9.9%

|

[http://www.nesdc.go.kr/result/201705/FILE_201705030225403321.pdf.htm Kantar]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| style="background:#FFFAD5"| 40.4%

| 11.8%

| 3.9%

| 19.2%

| 11.0%

|

Opinion polling

Opinion polls throughout 2017 showed Moon Jae-in as the leading candidate. Polls prior to the conclusion of the Democratic primary (which included his rivals to the nomination) had Moon at around 30% support, and polls conducted after he had won the primary showed generally consistent results of around 40% by April.

Polling showed a significant decline in support for Ahn Cheol-soo during April. While at the beginning of the month he was polling close to Moon, and even exceeded him in a few polls, by May his support had dropped to around 20%. This decline coincided with rising support for Hong Jun-pyo. By the time of the polling blackout period began on 3 May, Ahn and Hong were recording similar levels of support.

{{multiple image

|align=center

|image_style=border:none

|total_width = 1200

|image1=2017 Korea Presidential Election Opinion Polling (2017-1 to 2017-3).png

|image2=2017 Korea Presidential Election Opinion Polling.png

|caption1=Opinion polling January–March 2017, includes persons who did not secure their party's nomination or declined to run

|caption2=Opinion polling April–May 2017

}}


class="wikitable mw-collapsible mw-collapsed" style="text-align:center"

|+ {{nowrap|Opinion polls in May 2017}}

style="height:55px; background:#e9e9e9;"

! style="width:90px;" rowspan="3"| Polling firm/Link

! style="width:110px;" rowspan="3"| Fieldwork date

! style="width:35px;" rowspan="3"| Sample
size

! style="width:85px;"| Sim Sang-jung

! style="width:85px;"| Moon Jae-in

! style="width:85px;"| Ahn Cheol-soo

! style="width:85px;"| Yoo Seong-min

! style="width:85px;"| Hong Jun-pyo

{{party color cell|Justice Party (South Korea)}}

| {{party color cell|Democratic Party}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|Bareun Party}}

| {{party color cell|Saenuri Party}}

{{small|Justice}}

! {{small|Democratic}}

! {{small|People}}

! {{small|Bareun}}

! {{small|Liberty Korea}}

|17.05.09

|colspan="11" |Election Day

|17.05.04- 17.05.05

|colspan="11" |Early Voting

|17.05.03- 17.05.09

|colspan="11" |Poll Blackout period

[http://www.nesdc.go.kr/result/201705/FILE_201705030230190460.pdf.htm Embrain]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.05.02

| {{small|2,058}}

| 7.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.6%

| 17.8%

| 4.2%

| 19.6%

[http://www.nesdc.go.kr/result/201705/FILE_201705030247040070.pdf.htm Research Plus]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.05.01–17.05.02

| {{small|1,011}}

| 5.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.7%

| 18.9%

| 4.6%

| 13.7%

[http://www.nesdc.go.kr/result/201705/FILE_201705030225403321.pdf.htm Kantar]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.05.01–17.05.02

| {{small|1,147}}

| 6.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.5%

| 15.7%

| 3.8%

| 16.8%

[http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=011&aid=0003026347{{Dead link|date=April 2019 |bot=InternetArchiveBot |fix-attempted=yes }} Hankook Research]

| 17.05.01–17.05.02

| {{small|1,000}}

| 11.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.0%

| 21.0%

| 4.0%

| 16.8%

[http://www.kukinews.com/news/article.html?no=451601 JoWon C&I]

| 17.05.01–17.05.02

| {{small|1,035}}

| 8.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 36.1%

| 22.3%

| 3.6%

| 16.9%

[http://news.donga.com/ISSUE/2017president/News?gid=84188748&date=20170503 Research & Research]

| 17.05.01–17.05.02

| {{small|1,058}}

| 8.1%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.2%

| 19.9%

| 5.7%

| 17.7%

[http://gallupkorea.blogspot.kr/2017/05/2572017-5-1.html Gallup Korea]

| 17.05.01–17.05.02

| {{small|1,015}}

| 8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38%

| 20%

| 6%

| 16%

[http://www.edaily.co.kr/news/NewsRead.edy?SCD=JF21&newsid=01338246615925312&DCD=A00602&OutLnkChk=Y Yeouido] {{Webarchive|url=https://web.archive.org/web/20190912132750/http://www.edaily.co.kr/news/NewsRead.edy?SCD=JF21&newsid=01338246615925312&DCD=A00602&OutLnkChk=Y |date=12 September 2019 }}

| 17.05.01–17.05.02

| {{small|2,182}}

| 6.4%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.4%

| 20.1%

| 4.5%

| 24.9%

[http://www.realmeter.net/2017/05/%ea%b3%b5%ed%91%9c%ea%b8%88%ec%a7%80-%ec%a7%81%ec%a0%84-%ec%95%88%ec%8b%ac%eb%b2%88%ed%98%b8-19%eb%8c%80-%eb%8c%80%ec%84%a0-%ec%97%ac%eb%a1%a0%ec%a1%b0%ec%82%ac-%eb%ac%b8-42-4-%ed%99%8d-18-6/ Realmeter]

| 17.05.01–17.05.02

| {{small|1,016}}

| 7.3%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.4%

| 18.6%

| 4.9%

| 18.6%

[http://news.jtbc.joins.com/html/059/NB11463059.html Hankook Research]

| 17.05.01–17.05.02

| {{small|1,000}}

| 8.4%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.2%

| 19.7%

| 5.1%

| 16.2%

[http://www.nesdc.go.kr/result/201705/FILE_201705030852360690.PDF.htm ResearchView]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.04.30–17.05.02

| {{small|2,053}}

| 8.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 43.2%

| 21.1%

| 4.8%

| 20.1%

[http://www.mbn.co.kr/pages/vod/programView.mbn?bcastSeqNo=1154251 MetriX]

| 17.04.30–17.05.02

| {{small|1,500}}

| 9.1%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.2%

| 21.5%

| 4.3%

| 16.7%

[http://www.munhwa.com/news/view.html?no=2017050201070121083001 Embrain]

| 17.05.01

| {{small|1,018}}

| 9.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.6%

| 22.6%

| 3.7%

| 18.3%

[http://www.kukinews.com/news/article.html?no=451479 JoWon C&I]

| 17.04.30–17.05.01

| {{small|1,046}}

| 8.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.5%

| 23.9%

| 3.5%

| 18.4%

[http://www.dailian.co.kr/news/view/630515/?sc=naver R&Search]

| 17.04.30–17.05.01

| {{small|1,961}}

| 8.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 41.8%

| 19.4%

| 3.9%

| 21.2%

[http://view.asiae.co.kr/news/view.htm?idxno=2017050208152789293 Research & Research]

| 17.04.30–17.05.01

| {{small|1,027}}

| 9.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.7%

| 20.2%

| 5.1%

| 16.4%

[http://news.joins.com/article/21533249 JoongAng Ilbo]

| 17.04.30–17.05.01

| {{small|2,000}}

| 9.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.3%

| 21.8%

| 4.9%

| 16.5%

[http://news.chosun.com/site/data/html_dir/2017/05/01/2017050102007.html Gallup Korea]

| 17.04.30–17.05.01

| {{small|3,077}}

| 8.4%

| {{party shading/Democratic Party (South Korea, 2015)}} | 37.7%

| 19.1%

| 3.6%

| 14.9%

class="wikitable mw-collapsible mw-collapsed" style="text-align:center"

|+ {{nowrap|Opinion polls in April 2017}}

style="height:55px; background:#e9e9e9;"

! style="width:90px;" rowspan="3"| Polling firm/Link

! style="width:110px;" rowspan="3"| Fieldwork date

! style="width:35px;" rowspan="3"| Sample
size

! style="width:85px;"| Sim Sang-jung

! style="width:85px;"| Moon Jae-in

! style="width:85px;"| Ahn Cheol-soo

! style="width:85px;"| Yoo Seong-min

! style="width:85px;"| Hong Jun-pyo

{{party color cell|Justice Party (South Korea)}}

| {{party color cell|Democratic Party}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|Bareun Party}}

| {{party color cell|Saenuri Party}}

{{small|Justice}}

! {{small|Democratic}}

! {{small|People}}

! {{small|Bareun}}

! {{small|Liberty Korea}}

[http://v.media.daum.net/v/20170501183424715?s=pelection2017 Research & Research]

| 17.04.29–17.04.30

| {{small|1,004}}

| 8.1%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.4%

| 20.8%

| 4.8%

| 16.2%

[http://news.ebs.co.kr/ebsnews/menu1/newsAllView/10671921/H?eduNewsYn=N&newsFldDetlCd Hankook Research]

| 17.04.29–17.04.30

| {{small|1,000}}

| 11.4%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.7%

| 23.4%

| 5.7%

| 14.4%

[https://www.naeil.com/news_view/?id_art=236013 The Opinion]

| 17.04.29–17.04.30

| {{small|1,000}}

| 6.9%

| {{party shading/Democratic Party (South Korea, 2015)}} | 37.3%

| 20.5%

| 4.9%

| 15.8%

[http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=006&aid=0000086590{{Dead link|date=April 2019 |bot=InternetArchiveBot |fix-attempted=yes }} STI]

| 17.04.29–17.04.30

| {{small|1,000}}

| 8.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 46.0%

| 19.2%

| 4.8%

| 17.4%

[https://www.newdaily.co.kr/news/article.html?no=344104 Ace Research]

| 17.04.29

| {{small|1,023}}

| 7.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 41.1%

| 21.5%

| 4.3%

| 20.8%

[http://news.naver.com/main/read.nhn?mode=LSD&mid=sec&sid1=154&oid=448&aid=0000208686 MetriX]

| 17.04.28–17.04.29

| {{small|1,000}}

| 7.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.8%

| 21.0%

| 4.1%

| 15.4%

[http://ksoi.org/news-view.php?nno=33 KSOI] {{Webarchive|url=https://web.archive.org/web/20180926233119/http://ksoi.org/news-view.php?nno=33 |date=26 September 2018 }}

| 17.04.28–17.04.29

| {{small|1,000}}

| 8.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 41.4%

| 22.1%

| 6.3%

| 16.6%

[http://www.realmeter.net/2017/04/44575 Realmeter]

| 17.04.27–17.04.29

| {{small|1,523}}

| 7.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.6%

| 20.9%

| 5.2%

| 16.7%

|17.04.28

|colspan="11" |Fifth presidential debate held by NEC

[http://gallupkorea.blogspot.kr/2017/04/2562017-4-4-tv.html Gallup Korea]

| 17.04.25–17.04.27

| {{small|1,006}}

| 7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40%

| 24%

| 4%

| 12%

[http://www.pressian.com/news/article.html?no=157086 ResearchView]

| 17.04.25–17.04.27

| {{small|1,418}}

| 6.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 45.5%

| 23.7%

| 3.9%

| 15.3%

[http://m.news.naver.com/election/president2017/news/read.nhn?oid=437&aid=0000152972&sid1=154 Hankook Research]

| 17.04.25–17.04.26

| {{small|2,000}}

| 7.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.5%

| 25.2%

| 4.9%

| 12.3%

[http://www.nesdc.go.kr/portal/bbs/B0000005/view.do?nttId=3728®No=3700&searchCnd=&searchWrd=&gubun=&delCode=0&delcode=0&useAt=&replyAt=&menuNo=201455&sdate=&edate=&pdate=&deptId=&isk=&ise=&viewType=&pollGubuncd=&categories=&searchKey=&searchTime=&searchCode=&searchDecision=&option1=&option2=&option3=&option4=&option5=&option6=&option7=&option8=&option9=&option10=&pageIndex=1 Realmeter]

| 17.04.24–17.04.26

| {{small|1,520}}

| 7.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 44.4%

| 22.8%

| 5.4%

| 13.0%

|17.04.25

|colspan="11" |Fourth presidential debate held by JTBC

[http://www.hankookilbo.com/v/c9dd7de7bc274141997e764087569289 Hankook Research]

| 17.04.24–17.04.25

| {{small|1,000}}

| 8.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.4%

| 26.4%

| 5.1%

| 10.8%

[http://www.dailian.co.kr/news/view/628969/?sc=naver R&Search]

| 17.04.23–17.04.25

| {{small|1,772}}

| 4.3%

| {{party shading/Democratic Party (South Korea, 2015)}} | 44.3%

| 26.1%

| 4.6%

| 14.8%

[http://news.mk.co.kr/newsRead.php?&year=2017&no=281143 MetriX]

| 17.04.23–17.04.24

| {{small|1,500}}

| 4.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.3%

| 29.6%

| 3.4%

| 9.7%

[http://news.joins.com/article/21509045 JoongAng Ilbo]

| 17.04.23–17.04.24

| {{small|2,000}}

| 5.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.8%

| 29.4%

| 4.4%

| 11.7%

[http://www.kukinews.com/news/article.html?no=449743 JoWon C&I]

| 17.04.22–17.04.24

| {{small|1,010}}

| 3.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.4%

| 31.1%

| 4.2%

| 13.9%

|17.04.23

|colspan="11" |Third presidential debate held by NEC

[http://news.tvchosun.com/site/data/html_dir/2017/04/23/2017042390084.html Kantar]

| 17.04.21–17.04.22

| {{small|1,030}}

| 3.3%

| {{party shading/Democratic Party (South Korea, 2015)}} | 37.5%

| 26.4%

| 2.9%

| 7.6%

[http://ksoi.org/news-view.php?nno=30 KSOI] {{Webarchive|url=https://web.archive.org/web/20170424004003/http://ksoi.org/news-view.php?nno=30 |date=24 April 2017 }}

| 17.04.21–17.04.22

| {{small|1,021}}

| 5.1%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.5%

| 30.4%

| 5.7%

| 8.9%

[https://web.archive.org/web/20170424004128/http://www.hankyung.com/election2017/newsview.php?aid=2017042311851&nv=o Research & Research]

| 17.04.21–17.04.22

| {{small|1,514}}

| 4.1%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.1%

| 30.1%

| 3.8%

| 9.5%

[http://www.pressian.com/news/article.html?no=156517&ref=nav_search ResearchView]

| 17.04.18–17.04.20

| {{small|2,004}}

| 5.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 43.3%

| 31.3%

| 3.8%

| 11.4%

[http://www.gallup.co.kr/gallupdb/reportContent.asp?seqNo=826 Gallup Korea]

| 17.04.18–17.04.20

| {{small|1,004}}

| 4%

| {{party shading/Democratic Party (South Korea, 2015)}} | 41%

| 30%

| 3%

| 9%

|17.04.19

|colspan="11" |Second presidential debate held on KBS

[http://news.donga.com/ISSUE/2017president/News?gid=83973836&date=20170421 Research & Research]

| 17.04.18–17.04.19

| {{small|1,009}}

| 4.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.0%

| 30.1%

| 2.5%

| 10.2%

[http://www.munhwa.com/news/view.html?no=2017042001070121083001 EMBRAIN]

| 17.04.18–17.04.19

| {{small|1,054}}

| 2.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.9%

| 34.4%

| 2.7%

| 9.5%

[http://news.jtbc.joins.com/html/861/NB11456861.html Hankook Research]

| 17.04.18–17.04.19

| {{small|1,200}}

| 3.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.0%

| 31.8%

| 3.9%

| 8.5%

[http://www.nocutnews.co.kr/news/4770489 Realmeter]

| 17.04.17–17.04.18

| {{small|1,012}}

| 4.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 43.8%

| 32.3%

| 3.2%

| 10.2%

[http://www.seoul.co.kr/news/newsView.php?id=20170418500097 EMBRAIN]

| 17.04.17

| {{small|1,049}}

| 3.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 37.7%

| 34.6%

| 3.4%

| 8.5%

[http://www.straightnews.co.kr/news/articleView.html?idxno=21488 JoWon C&I]

| 17.04.15–17.04.16

| {{small|1,063}}

| 3.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.7%

| 32.8%

| 4.7%

| 13.1%

[http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&mid=sec&sid1=154&oid=025&aid=0002706001{{Dead link|date=April 2019 |bot=InternetArchiveBot |fix-attempted=yes }} JoongAng Ilbo]

| 17.04.15–17.04.16

| {{small|2,000}}

| 3.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.5%

| 37.3%

| 3.9%

| 7.4%

[http://www.sedaily.com/NewsView/1OEO49L1YU Hankook Research]

| 17.04.15–17.04.16

| {{small|1,000}}

| 3.9%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.6%

| 35.6%

| 2.7%

| 7.3%

[http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&mid=sec&sid1=154&oid=055&aid=0000522358{{Dead link|date=April 2019 |bot=InternetArchiveBot |fix-attempted=yes }} Kantar]

| 17.04.14–17.04.15

| {{small|1,039}}

| 2.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 35.8%

| 30.2%

| 2.8%

| 8.4%

[http://the300.mt.co.kr/newsView.html?no=2017041614477638621 KSOI]

| 17.04.14–17.04.15

| {{small|1,015}}

| 2.9%

| {{party shading/Democratic Party (South Korea, 2015)}} | 46.9%

| 34.4%

| 3.4%

| 6.8%

[http://www.nesdc.go.kr/result/201704/FILE_201704140529330110.pdf.htm Realmeter] {{Webarchive|url=https://web.archive.org/web/20170419163811/http://www.nesdc.go.kr/result/201704/FILE_201704140529330110.pdf.htm |date=19 April 2017 }}

| 17.04.14

| {{small|1,011}}

| 4.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 45.4%

| 30.7%

| 3.8%

| 8.9%

|17.04.13

|colspan="11" |First presidential debate held on SBS

[http://www.pressian.com/news/article.html?no=155862&ref=nav_search ResearchView]

| 17.04.12–17.04.13

| {{small|1,253}}

| 3.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 46.0%

| 36.5%

| 2.4%

| 8.8%

[http://gallupkorea.blogspot.kr/2017/04/2542017-4-2.html Gallup Korea]

| 17.04.11–17.04.13

| {{small|1,010}}

| 3%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40%

| 37%

| 3%

| 7%

[http://www.nesdc.go.kr/portal/bbs/B0000005/view.do?nttId=3678®No=3653&searchCnd=&searchWrd=&gubun=&delCode=0&delcode=0&useAt=&replyAt=&menuNo=200467&sdate=&edate=&pdate=&deptId=&isk=&ise=&viewType=&pollGubuncd=&categories=&searchKey=&searchTime=&searchCode=&searchDecision=&option1=&option2=&option3=&option4=&option5=&option6=&option7=&option8=&option9=&option10=&pageIndex=1 Hankook Research]

| 17.04.11–17.04.12

| {{small|1,000}}

| 2.7%

| 38.0%

| style="background:{{party color|People Party (South Korea, 2016)}}; color:white;" | 38.3%

| 2.1%

| 6.5%

[http://www.realmeter.net/2017/04/%eb%a6%ac%ec%96%bc%eb%af%b8%ed%84%b0-2017%eb%85%84-4%ec%9b%94-2%ec%a3%bc%ec%b0%a8-%ec%a3%bc%ec%a4%91%eb%8f%99%ed%96%a5-%ed%9b%84%eb%b3%b4%eb%93%b1%eb%a1%9d-d-2-%eb%ac%b8-44-8-%ec%95%88-36-5/ Realmeter]

| 17.04.10–17.04.12

| {{small|1,525}}

| 2.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 44.8%

| 36.5%

| 1.7%

| 8.1%

[https://archive.today/20170920054432/http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=119&aid=0002178718 R&Search]

| 17.04.09–17.04.11

| {{small|1,997}}

| 3.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.3%

| 37.0%

| 2.0%

| 9.1%

[http://www.kukinews.com/news/article.html?no=446262 JoWon C&I]

| 17.04.08–17.04.10

| {{small|1,046}}

| 3.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.6%

| 34.4%

| 2.9%

| 8.7%

[http://www.nesdc.go.kr/result/201704/FILE_201704100311108000.pdf.htm Realmeter] {{Webarchive|url=https://web.archive.org/web/20170414003218/http://www.nesdc.go.kr/result/201704/FILE_201704100311108000.pdf.htm |date=14 April 2017 }}

| 17.04.08–17.04.09

| {{small|1,018}}

| 4.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 41.1%

| 34.8%

| 2.2%

| 8.6%

[http://www.yonhapnews.co.kr/politics/2017/04/09/0505000000AKR20170409046800001.HTML Korea Research Center]

| 17.04.08–17.04.09

| {{small|2,011}}

| 2.8%

| 32.7%

| style="background:{{party color|People Party (South Korea, 2016)}}; color:white;" | 36.8%

| 1.5%

| 6.5%

[http://www.realmeter.net/2017/04/%ec%a0%9c2%ec%b0%a8-%ec%a0%84%ea%b5%ad-%ec%a7%80%eb%b0%a9%ec%8b%a0%eb%ac%b8-7%ea%b0%9c%ec%82%ac-%ec%a1%b0%ec%82%ac-%eb%ac%b8-42-6-%ec%95%88-37-2-%ed%99%8d-8-4-%ec%8b%ac-3-3-%ec%9c%a0-2-4/ Realmeter]

| 17.04.07–17.04.08

| {{small|2,244}}

| 3.3%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.6%

| 37.2%

| 2.4%

| 8.4%

[https://archive.today/20170920054206/http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=469&aid=0000197194 Hankook Research]

| 17.04.07–17.04.08

| {{small|1,000}}

| 3.6%

| {{party shading/Democratic Party (South Korea, 2015)}} | 37.7%

| 37.0%

| 3.0%

| 6.7%

[http://www.hankyung.com/news/app/newsview.php?aid=2017040965191 Research & Research]

| 17.04.07–17.04.08

| {{small|1,500}}

| 3.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 35.2%

| 34.5%

| 2.8%

| 7.4%

[http://ksoi.org/news-view.php?nno=23 KSOI] {{Webarchive|url=https://web.archive.org/web/20170409200205/http://ksoi.org/news-view.php?nno=23 |date=9 April 2017 }}

| 17.04.07–17.04.08

| {{small|1,007}}

| 2.9%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.6%

| 35.6%

| 2.7%

| 5.8%

[http://news.chosun.com/site/data/html_dir/2017/04/09/2017040901698.html Kantar]

| 17.04.07–17.04.08

| {{small|2,300}}

| 2.3%

| 32.2%

| style="background:{{party color|People Party (South Korea, 2016)}}; color:white;" | 34.4%

| 1.9%

| 5.7%

[http://www.hani.co.kr/arti/politics/politics_general/789933.html Research Plus]

| 17.04.07–17.04.08

| {{small|1,023}}

| 2.0%

| {{party shading/Democratic Party (South Korea, 2015)}} | 37.7%

| style="background:{{party color|People Party (South Korea, 2016)}}; color:white;" | 37.7%

| 2.1%

| 6.6%

[http://gallupkorea.blogspot.kr/2017/04/2532017-4-1.html Gallup Korea]

| 17.04.04–17.04.06

| {{small|1,005}}

| 3%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38%

| 35%

| 4%

| 7%

[http://www.pressian.com/news/article.html?no=155262 ResearchView]

| 17.04.04–17.04.06

| {{small|1,012}}

| 2.2%

| {{party shading/Democratic Party (South Korea, 2015)}} | 42.4%

| 35.1%

| 2.5%

| 10.3%

[http://www.realmeter.net/wp-content/uploads/2017/04/realmeter_mbn1170406.pdf Realmeter]

| 17.04.05

| {{small|1,008}}

| 2.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 41.3%

| 34.5%

| 3.0%

| 9.2%

[http://www.nesdc.go.kr/portal/bbs/B0000005/view.do?nttId=3653®No=3628&searchCnd=&searchWrd=&gubun=&delCode=0&delcode=0&useAt=&replyAt=&menuNo=200467&sdate=&edate=&pdate=&deptId=&isk=&ise=&viewType=&pollGubuncd=&categories=&searchKey=&searchTime=&searchCode=&searchDecision=&option1=&option2=&option3=&option4=&option5=&option6=&option7=&option8=&option9=&option10=&pageIndex=1 Surveymob]

| 17.04.04–17.04.05

| {{small|1,048}}

| 2.74%

| {{party shading/Democratic Party (South Korea, 2015)}} | 34.83%

| 28.91%

| 6.95%

| 8.09%

[http://www.nesdc.go.kr/portal/bbs/B0000005/view.do?nttId=3654®No=3632&searchCnd=&searchWrd=&gubun=&delCode=0&delcode=0&useAt=&replyAt=&menuNo=200467&sdate=&edate=&pdate=&deptId=&isk=&ise=&viewType=&pollGubuncd=&categories=&searchKey=&searchTime=&searchCode=&searchDecision=&option1=&option2=&option3=&option4=&option5=&option6=&option7=&option8=&option9=&option10=&pageIndex=1 JoongAng Ilbo]

| 17.04.04–17.04.05

| {{small|1,500}}

| 2.1%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.4%

| 34.9%

| 2.7%

| 9.6%

[http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=081&aid=0002811297{{Dead link|date=April 2019 |bot=InternetArchiveBot |fix-attempted=yes }} EMBRAIN]

| 17.04.04

| {{small|1,042}}

| 3.5%

| {{party shading/Democratic Party (South Korea, 2015)}} | 38.2%

| 33.2%

| 2.7%

| 10.3%

[https://archive.today/20170920053220/http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=119&aid=0002177142 Hankook Research]

| 17.04.04

| {{small|1,000}}

| 3.7%

| {{party shading/Democratic Party (South Korea, 2015)}} | 39.1%

| 31.8%

| 3.8%

| 8.6%

[https://archive.today/20170920053220/http://news.naver.com/main/election/president2017/news/read.nhn?mode=LSD&sid1=154&oid=119&aid=0002177142 R&Search]

| 17.04.03–17.04.04

| {{small|1,708}}

| 3.8%

| {{party shading/Democratic Party (South Korea, 2015)}} | 40.8%

| 30.9%

| 2.8%

| 12.6%

class="wikitable mw-collapsible mw-collapsed" style="text-align:center"

|+ {{nowrap|Opinion polls in March 2017}}

style="height:55px; background:#e9e9e9;"

! style="width:90px;" rowspan="3"| Polling firm/Link

! style="width:110px;" rowspan="3"| Fieldwork date

! style="width:35px;" rowspan="3"| Sample
size

! style="width:35px;"| Sim Sang-jung

! style="width:35px;"| Lee Jae-myung

! style="width:35px;"| Moon Jae-in

! style="width:35px;"| Ahn Hee-jung

! style="width:35px;"| Ahn Cheol-soo

! style="width:35px;"| Sohn Hak-kyu

! style="width:35px;"| Yoo Seong-min

! style="width:35px;"| Nam Kyung-pil

! style="width:35px;"| Hwang Kyo-ahn

! style="width:35px;"| Hong Jun-pyo

{{party color cell|Justice Party (South Korea)}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|Bareun Party}}

| {{party color cell|Bareun Party}}

| {{party color cell|Independent (politician)}}

| {{party color cell|Saenuri Party}}

{{small|Justice}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|People}}

! {{small|People}}

! {{small|Bareun}}

! {{small|Bareun}}

! {{small|Independent}}

! {{small|Liberty}}

[http://www.nesdc.go.kr/result/201703/FILE_201703300751339010.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.27- 17.03.29

| {{small|1,525}}

| 3.4%

| 9.5%

| {{party shading/Democratic Party (South Korea, 2015)}}|35.2%

| 12.0%

| 17.4%

| 2.4%

| 2.6%

| –

| –

| 7.7%

[http://www.nesdc.go.kr/result/201703/FILE_201703281058209070.pdf.mobile.xhtml R&Search]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.27- 17.03.28

| {{small|1,080}}

| 2.6%

| 11.2%

| style="background:#D5EFFF"|33.0%

| 12.6%

| 16.6%

| 0.6%

| 1.4%

| 0.7%

| –

| 7.8%

[http://www.nesdc.go.kr/result/201703/FILE_201703240641450130.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.20- 17.03.24

| {{small|2,553}}

| 2.9%

| 10.2%

| style="background:#D5EFFF"|34.4%

| 17.1%

| 12.6%

| 2.2%

| 2.2%

| 1.0%

| –

| 9.5%

[http://www.nesdc.go.kr/result/201703/FILE_201703241101303110.pdf.htm Gallup Korea]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.21- 17.03.23

| {{small|1,007}}

| 2%

| 8%

| style="background:#D5EFFF"|31%

| 17%

| 10%

| 1%

| 1%

| –

| –

| 6%

[http://www.nesdc.go.kr/result/201703/FILE_201703220301346560.pdf.htm R&Search]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.19- 17.03.21

| {{small|1,589}}

| 2.0%

| 9.4%

| style="background:#D5EFFF"|33.2%

| 17.5%

| 11.2%

| 1.2%

| 2.4%

| 0.6%

| –

| 7.7%

[http://www.nesdc.go.kr/result/201703/FILE_201703161117218440.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.15

| {{small|1,015}}

| 4.1%

| 10.3%

| style="background:#D5EFFF"|37.1%

| 16.8%

| 12.0%

| 1.8%

| 4.8%

| 1.8%

| –

| 7.1%

[http://www.nesdc.go.kr/result/201703/FILE_201703150943124520.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.14

| {{small|1,000}}

| 1.1%

| 8.9%

| style="background:#D5EFFF"|30.7%

| 13.3%

| 8.9%

| 0.9%

| 1.4%

| 0.7%

| 9.6%

| 2.2%

[http://www.nesdc.go.kr/result/201703/FILE_201703100650139410.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.10

| {{small|1,008}}

| 3.3%

| 9.7%

| style="background:#D5EFFF"|36.0%

| 14.5%

| 11.3%

| 2.6%

| 2.4%

| 1.0%

| 10.1%

| 2.4%

|17.03.10

|colspan="11" |The Constitutional Court upholds the impeachment of President Park Geun-hye

[http://www.nesdc.go.kr/result/201703/FILE_201703080533190820.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.03.06–17.03.07

| {{small|1,000}}

| 1.3%

| 8.4%

| style="background:#D5EFFF"|30.7%

| 13.7%

| 7.6%

| 1.2%

| 1.2%

| 0.6%

| 11.1%

| 1.8%

[http://www.nesdc.go.kr/result/201703/FILE_201703060116561620.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.27–17.03.03

| {{small|2,025}}

| 1.7%

| 8.9%

| style="background:#D5EFFF"|36.4%

| 12.6%

| 10.8%

| 2.9%

| 2.8%

| 1.3%

| 14.9%

| 3.8%

class="wikitable mw-collapsible mw-collapsed" style="text-align:center"

|+ {{nowrap|Opinion polls in January–February 2017}}

style="height:55px; background:#e9e9e9;"

! style="width:90px;" rowspan="3"| Polling firm/Link

! style="width:110px;" rowspan="3"| Fieldwork date

! style="width:35px;" rowspan="3"| Sample
size

! style="width:35px;"| Sim Sang-jung

! style="width:35px;"| Lee Jae-myung

! style="width:35px;"| Moon Jae-in

! style="width:35px;"| Ahn Hee-jung

! style="width:35px;"| Ahn Cheol-soo

! style="width:35px;"| Sohn Hak-kyu

! style="width:35px;"| Yoo Seong-min

! style="width:35px;"| Nam Kyung-pil

! style="width:35px;"| Ban Ki-moon

! style="width:35px;"| Hwang Kyo-ahn

! style="width:35px;"| Hong Jun-pyo

{{party color cell|Justice Party (South Korea)}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|Democratic Party}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|People Party (South Korea, 2016)}}

| {{party color cell|Bareun Party}}

| {{party color cell|Bareun Party}}

| {{party color cell|Independent (politician)}}

| {{party color cell|Independent (politician)}}

| {{party color cell|Saenuri Party}}

{{small|Justice}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|Democratic}}

! {{small|People}}

! {{small|People}}

! {{small|Bareun}}

! {{small|Bareun}}

! {{small|Independent}}

! {{small|Independent}}

! {{small|Liberty}}

[http://www.nesdc.go.kr/result/201703/FILE_201703011252414840.pdf.htm R&Search] {{Webarchive|url=https://web.archive.org/web/20170612171959/http://www.nesdc.go.kr/result/201703/FILE_201703011252414840.pdf.htm |date=12 June 2017 }}

| 17.02.27–17.02.28

| {{small|1,111}}

| 0.9%

| 9.8%

| style="background:#D5EFFF"|37.6%

| 15.5%

| 11.1%

| 1.1%

| 1.8%

| 1.2%

| –

| 12.5%

| 1.4%

[http://www.nesdc.go.kr/result/201703/FILE_201702271148094511.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.24–17.02.25

| {{small|1,000}}

| 1.1%

| 10.1%

| style="background:#D5EFFF"|30.9%

| 15.8%

| 7.8%

| 0.8%

| 1.6%

| 0.1%

| –

| 10.3%

| 1.6%

[http://www.nesdc.go.kr/result/201702/FILE_201702241037405260.pdf.htm Gallup Korea]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.21–17.02.23

| {{small|1,006}}

| –

| 8%

| style="background:#D5EFFF"|32%

| 21%

| 8%

| –

| 2%

| –

| –

| 8%

| –

[http://www.nesdc.go.kr/result/201702/FILE_201702220716325440.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.20–17.02.22

| {{small|1,508}}

| 1.1%

| 10.1%

| style="background:#D5EFFF"|32.4%

| 19.2%

| 10.5%

| 1.7%

| 3.3%

| 1.8%

| –

| 11.6%

| 3.3%

[http://www.nesdc.go.kr/result/201702/FILE_201702150708058650.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.13–17.02.15

| {{small|1,515}}

| 2.5%

| 7.0%

| style="background:#D5EFFF"|32.7%

| 19.3%

| 8.6%

| 2.8%

| 3.9%

| 1.3%

| –

| 16.5%

| 1.3%

[http://www.nesdc.go.kr/result/201702/FILE_201702091127172160.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.06–17.02.08

| {{small|1,508}}

| 2.6%

| 8.2%

| style="background:#D5EFFF"|33.2%

| 15.7%

| 9.1%

| 3.1%

| 3.5%

| 1.6%

| –

| 15.9%

| 1.4%

[http://www.nesdc.go.kr/result/201702/FILE_201702060732366621.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.05–17.02.06

| {{small|2,016}}

| 0.7%

| 6.3%

| style="background:#D5EFFF"|29.8%

| 14.2%

| 6.3%

| 1.1%

| 3.2%

| 0.6%

| –

| 11.2%

| –

[http://www.nesdc.go.kr/result/201702/FILE_201702030957308080.pdf.htm Gallup Korea]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.01–17.02.02

| {{small|1,003}}

| 0.6%

| 7%

| style="background:#D5EFFF"|32%

| 10%

| 7%

| 0.5%

| 3%

| –

| 8%

| 9%

| –

[http://www.nesdc.go.kr/result/201702/FILE_201702010919067290.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.02.01

| {{small|1,009}}

| 1.8%

| 9.9%

| style="background:#D5EFFF"|26.1%

| 11.1%

| 9.3%

| 2.7%

| 4.3%

| 2%

| –

| 12.1%

| 1.4%

[http://www.nesdc.go.kr/result/201702/FILE_201701261006285960.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.01.23–17.01.24

| 1,004

| 1.0%

| 9.5%

| style="background:#D5EFFF"|32.8%

| 6.4%

| 7.9%

| 2.0%

| 2.4%

| 0.9%

| 15.4%

| 7.4%

| –

[http://www.nesdc.go.kr/result/201702/FILE_201701180910279550.pdf.htm Realmeter]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.01.16–17.01.18

| {{small|1,507}}

| 1.9%

| 9%

| style="background:#D5EFFF"|28.1%

| 4%

| 7.4%

| 1.8%

| 2.2%

| 1.2%

| 21.8%

| 4%

| 0.7%

[http://www.nesdc.go.kr/result/201702/FILE_201701180842265111.pdf.htm Hankook Research]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.01.15–17.01.16

| {{small|1,000}}

| –

| 9.5%

| style="background:#D5EFFF"|31.4%

| 3.9%

| 4.8%

| 1.3%

| 1.2%

| 0.3%

| 20%

| –

| –

[http://www.nesdc.go.kr/result/201702/FILE_201701130125561781.pdf.htm Gallup Korea]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.01.10–17.01.12

| {{small|1,007}}

| –

| 12%

| style="background:#D5EFFF"|31%

| 6%

| 7%

| 2%

| 3%

| –

| 20%

| 5%

| –

[http://www.nesdc.go.kr/result/201702/FILE_201701030718057250.pdf.htm R&Search]{{Dead link|date=June 2022 |bot=InternetArchiveBot |fix-attempted=yes }}

| 17.01.01–17.01.02

| {{small|1,153}}

| –

| 10%

| style="background:#D5EFFF"|32.2%

| 3.9%

| 5.9%

| 3.1%

| 2.1%

| 0.7%

| 21.3%

| 7.2%

| –

class="wikitable mw-collapsible mw-collapsed" style="text-align:center"

|+ {{nowrap|Opinion polls in 2016}}

! Date

! Polling firm

! nowrap|Ban Ki-Moon
(Nonpartisan)

! Moon Jae-in
(Minjoo)

! Ahn Cheol-so
(People's)

! Kim Moo-sung
(Saenuri)

! Undecided/
Refused

! Lead

rowspan="3" style="text-align: center;" | 14–15 Nov 2016

| rowspan="3" style="text-align: center;" | [http://www.realmeter.net/2016/11/2016%EB%85%84-11%EC%9B%94-%EC%B0%A8%EA%B8%B0%EB%8C%80%EC%84%A0-%EA%B0%80%EC%83%81%EB%8C%80%EA%B2%B0-%EB%AC%B8%EC%9E%AC%EC%9D%B8-3%EC%9E%90%EC%97%90%EC%84%9C-%EC%B2%98%EC%9D%8C-1%EC%9C%84-%EA%B8%B0// Realmeter]

| align=center| 31.5%

| align=center {{party shading/Democratic Party (South Korea, 2015)}} | 32.7%

| align=center| 22.8%

| {{Not polled}} |

| align=center| 13%

| style="text-align: center; background:{{party color|Democratic Party}}; color:white;" | 1.2

align=center| 37.6%

| align=center {{party shading/Democratic Party (South Korea, 2015)}} | 46.2%

| {{Not polled}} |

| {{Not polled}} |

| align=center | 16.2%

| style="text-align: center; background:{{party color|Democratic Party}}; color:white;" | 8.6

align=center| 37.2%

| {{Not polled}} |

| style="text-align: center; background:{{party color|People Party (South Korea, 2016)}}; color:white;" | 39.9%

| {{Not polled}} |

| align=center | 22.9%

| style="text-align: center; background:{{party color|People Party (South Korea, 2016)}}; color:white;" | 2.7

rowspan="3" style="text-align: center;" | 19–20 Sep 2016

| rowspan="3" style="text-align: center;" | [http://www.realmeter.net/2016/09/2016%EB%85%84-9%EC%9B%94-%EC%B0%A8%EA%B8%B0%EB%8C%80%EC%84%A0-%EA%B0%80%EC%83%81%EB%8C%80%EA%B2%B0-%EC%97%AC%EC%95%BC-3%EC%9E%90%EB%8C%80%EA%B2%B0-%EB%B0%98-38-5-%EB%AC%B8-30-6-%EC%95%88-18-0// Realmeter]

| align=center {{party shading/Independent}}| 38.5%

| align=center| 30.6%

| align=center| 18.0%

| {{Not polled}} |

| align=center| 12.9%

| style="text-align: center; background:{{party color|Independent}}; color:black;" | 7.9

align=center {{party shading/Independent}} | 46.7%

| align=center| 38.4%

| {{Not polled}}|

| {{Not polled}}|

| align=center| 14.9%

| style="text-align: center; background:{{party color|Independent}}; color:black;" | 8.3

align=center {{party shading/Independent}} | 46.3%

| {{not polled}}|

| align=center| 32.5%

| {{not polled}}|

| align=center| 21.2%

| style="text-align: center; background:{{party color|Independent}}; color:black;" | 13.8

rowspan="3" style="text-align: center;" | 13–14 Jun 2016

| rowspan="3" style="text-align: center;" | [http://www.realmeter.net/2016/06/2016%EB%85%84-6%EC%9B%94-%EC%B0%A8%EA%B8%B0%EB%8C%80%EC%84%A0-%EA%B0%80%EC%83%81%EB%8C%80%EA%B2%B0-%E6%BD%98%C2%B7%E6%96%87%EC%96%91%EC%9E%90-%E6%96%87-%EC%B4%88%EB%B0%95%EB%B9%99-%EC%9A%B0/ Realmeter]

| align=center {{party shading/Independent}} | 36.5%

| align=center| 34.9%

| align=center| 19.0%

| {{not polled}}|

| align=center| 9.6%

| style="text-align: center; background:{{party color|Independent}}; color:black;" | 1.6

align=center| 44.2%

| align=center {{party shading/Democratic Party (South Korea, 2015)}} | 44.9%

| {{not polled}}|

| {{not polled}}|

| align=center| 10.9%

| style="text-align: center; background:{{party color|Democratic Party}}; color:white;" | 0.7

align=center {{party shading/Independent}} | 40.9%

| {{not polled}}|

| align=center| 33.7%

| {{not polled}}|

| align=center| 25.4%

| style="text-align: center; background:{{party color|Independent}}; color:black;" | 7.2

rowspan="2" style="text-align: center;" | 18–19 Apr 2016

| rowspan="2" style="text-align: center;" | [http://www.realmeter.net/2016/04/2016%EB%85%84-4%EC%9B%94-%EC%B0%A8%EA%B8%B0-%EB%8C%80%EC%84%A0%EC%A3%BC%EC%9E%90-%EC%96%91%EC%9E%90%EB%8C%80%EA%B2%B0-%E6%96%87-%E6%BD%98-%EC%B4%88%EB%B0%95%EB%B9%99-%EC%A0%91%EC%A0%84-%E6%BD%98/ Realmeter]

| align=center| 42.3%

| align=center {{party shading/Democratic Party (South Korea, 2015)}} | 42.8%

| {{not polled}}|

| {{not polled}}|

| align=center| 14.9%

| style="text-align: center; background:{{party color|Democratic Party}}; color:white;" | 0.5

align=center {{party shading/Independent}} | 41.0%

| {{not polled}}|

| align=center| 32.3%

| {{not polled}}|

| align=center| 26.7%

| style="text-align: center; background:{{party color|Independent}}; color:black;" | 8.7

rowspan="2" style="text-align: center;" | 14–15 Mar 2016

| rowspan="2" style="text-align: center;" | [http://www.realmeter.net/2016/03/2016%EB%85%84-3%EC%9B%94-%EC%B0%A8%EA%B8%B0-%EB%8C%80%EC%84%A0%EC%A3%BC%EC%9E%90-%EC%96%91%EC%9E%90%EB%8C%80%EA%B2%B0-%E9%87%91-%E6%96%87-%EC%B4%88%EB%B0%95%EB%B9%99-%EC%A0%91%EC%A0%84-%E9%87%91/ Realmeter]

| {{not polled}}|

| align=center| 44.0%

| {{not polled}}|

| align=center {{party shading/Saenuri Party}} | 45.0%

| align=center| 11.0%

| style="text-align: center; background:{{party color|Saenuri Party}}; color:white;" | 1.0

{{not polled}}|

| {{not polled}}|

| align=center| 37.2%

| align=center {{party shading/Saenuri Party}} | 44.2%

| align=center| 18.6%

| style="text-align: center; background:{{party color|Saenuri Party}}; color:white;" | 7.0

rowspan="2" style="text-align: center;" | 17–19 Feb 2016

| rowspan="2" style="text-align: center;" | [http://www.realmeter.net/2016/02/2016%EB%85%84-2%EC%9B%94-%EC%B0%A8%EA%B8%B0-%EB%8C%80%EC%84%A0%EC%A3%BC%EC%9E%90-%EC%96%91%EC%9E%90%EB%8C%80%EA%B2%B0-%EA%B9%80%EB%AC%B4%EC%84%B1-%E5%AE%89%EC%97%90-%EC%9A%B0%EC%84%B8-%E6%96%87/ Realmeter]

| {{not polled}}|

| align=center| 44.3%

| {{not polled}}|

| align=center {{party shading/Saenuri Party}} | 45.0%

| align=center| 10.7%

| style="text-align: center; background:{{party color|Saenuri Party}}; color:white;" | 0.7

{{not polled}}|

| {{not polled}}|

| align=center| 37.7%

| align=center {{party shading/Saenuri Party}} | 43.8%

| align=center| 18.5%

| style="text-align: center; background:{{party color|Saenuri Party}}; color:white;" | 6.1

=Exit polls=

KBS, MBC, and SBS Terrestrial Broadcasting Exit Survey

class="wikitable" style="float: margin:10px"
style="background:#eee;"

| style="padding:10px; text-align:center; width:120px;"| Candidate

| style="padding:10px; text-align:center; width:150px;"| Estimated Percentage

style="width:90px; padding:2px 0 6px; font:13px georgia,arial; text-align:center;"| Moon Jae-in

| style="width:90px; padding:2px 0 6px; text-align:center;"| 41.4%

style="width:90px; padding:2px 0 6px; font:13px georgia,arial; text-align:center;"| Hong Jun-pyo

| style="width:90px; padding:2px 0 6px; text-align:center;"| 23.3%

style="width:90px; padding:2px 0 6px; font:13px georgia,arial; text-align:center;"| Ahn Cheol-soo

| style="width:90px; padding:2px 0 6px; text-align:center;"| 21.8%

style="width:90px; padding:2px 0 6px; font:13px georgia,arial; text-align:center;"| Yoo Seung-min

| style="width:90px; padding:2px 0 6px; text-align:center;"| 7.1%

style="width:90px; padding:2px 0 6px; font:13px georgia,arial; text-align:center;"| Sim Sang-jung

| style="width:90px; padding:2px 0 6px; text-align:center;"| 5.9%

Results

Moon Jae-in of the Democratic Party won the plurality of the votes (41.09% in contrast to 24.04% won by his closest opponent Hong Jun-pyo), thus winning this election. He assumed the office as the President of South Korea immediately upon the confirmation of the results at 8:09 am on 10 May 2017 (Local time) and was inaugurated in the National Assembly at afternoon on the same day.{{Cite news|url=https://www.bbc.com/news/world-asia-39866696|title=South Korea's Moon Jae-in sworn in vowing to address North|date=2017-05-10|work=BBC News|access-date=2017-05-17|language=en-GB}}

Moon's 17.1% margin of victory is the largest percentage margin for any liberal candidate since the beginning of free and fair direct elections in 1987.

{{Election results

|cand1=Moon Jae-in|party1=Democratic Party|votes1=13423800

|cand2=Hong Joon-pyo|party2=Liberty Korea Party|votes2=7852849

|cand3=Ahn Cheol-soo|party3=People Party|votes3=6998342

|cand4=Yoo Seong-min|party4=Bareun Party|votes4=2208771

|cand5=Sim Sang-jung|party5=Justice Party|votes5=2017458

|cand6=Cho Won-jin|party6=Saenuri Party|votes6=42949

|cand7=Kim Min-chan|party7=Independent|votes7=33990

|cand8=Kim Sun-dong|party8=People's United Party|votes8=27229

|cand9=Chang Sŏng-min|party9=Grand National Unity Party|votes9=21709|color9=#FFA500

|cand10=Yoon Hong-sik|party10=Hongik Party|votes10=18543|color10=#800080

|cand11=Lee Kyung-hee|party11=Korean Nationalist Party|votes11=11355|color11=#FFFF66

|cand12=Lee Jae-oh|party12=Evergreen Korea Party|votes12=9140|color12=#085c81

|cand13=Oh Young-guk|party13=Economic Patriots Party|votes13=6040

|invalid=135733

|electorate=42479710

|source=[http://www.nec.go.kr/engvote_2013/05_resourcecenter/07_02.jsp?num=492&pg=1&col=&sw= National Election Commission]

}}

=By region=

== Major candidates ==

Breakdown of votes by region for candidates with at least 1% of the total votes.

class="wikitable" style="text-align:right; font-size:95%"

! rowspan="3" |Region

! colspan="2" style="text-align:center;background: #E9E9E9" |Moon Jae-in

! colspan="2" style="text-align:center;background: #E9E9E9" |Hong Joon-pyo

! colspan="2" style="text-align:center;background: #E9E9E9" |Ahn Cheol-soo

! colspan="2" style="text-align:center;background: #E9E9E9" |Yoo Seong-min

! colspan="2" style="text-align:center;background: #E9E9E9" |Sim Sang-jung

colspan="2" {{party color cell|Democratic Party (South Korea, 2015)}}

| colspan="2" {{party color cell|Liberty Korea Party}}

| colspan="2" {{party color cell|People Party (South Korea, 2016)}}

| colspan="2" {{party color cell|Bareun Party}}

| colspan="2" {{party color cell|Justice Party (South Korea)}}

width="65px"|Votes

! width="25px"|%

! width="65px"|Votes

! width="25px"|%

! width="65px"|Votes

! width="25px"|%

! width="65px"|Votes

! width="25px"|%

! width="65px"|Votes

! width="25px"|%

align="left" |Seoul

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 2,781,345

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 42.3

|1,365,285

|20.8

|1,492,767

|22.7

|476,973

|7.3

|425,459

|6.5

align="left" |Busan

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 872,127

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 38.7

|720,484

|32.0

|378,907

|16.8

|162,480

|7.2

|109,329

|4.9

align="left" |Daegu

|342,620

|21.8

|style="background:{{party color|Liberty Korea Party}};color:white;"| 714,205

|style="background:{{party color|Liberty Korea Party}};color:white;"| 45.4

|235,757

|15.0

|198,459

|12.6

|74,440

|4.7

align="left" |Incheon

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 747,090

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 41.2

|379,191

|20.9

|428,888

|23.7

|118,691

|6.5

|129,925

|7.2

align="left" |Gwangju

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 583,847

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 61.1

|14,882

|1.6

|287,222

|30.1

|20,862

|2.2

|43,719

|4.6

align="left" |Daejeon

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 404,545

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 42.9

|191,376

|20.3

|218,769

|23.2

|59,820

|6.3

|63,669

|6.8

align="left" |Ulsan

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 282,794

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 38.1

|203,602

|27.5

|128,520

|17.3

|60,289

|8.1

|62,187

|8.4

align="left" |Sejong

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 77,767

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 51.1

|23,211

|15.2

|32,010

|21.0

|9,192

|6.0

|9,353

|6.1

align="left" |Gyeonggi

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 3,319,812

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 42.1

|1,637,345

|20.8

|1,807,308

|22.9

|540,023

|6.8

|546,373

|6.9

align="left" |Gangwon

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 324,768

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 34.2

|284,909

|30.0

|206,840

|21.8

|65,278

|6.9

|62,389

|6.6

align="left" |North Chungcheong

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 374,806

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 38.6

|255,502

|26.3

|211,454

|21.8

|57,282

|5.9

|65,095

|6.7

align="left" |South Chungcheong

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 476,661

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 38.6

|306,614

|24.8

|290,216

|23.5

|68,521

|5.6

|83,868

|6.8

align="left" |North Jeolla

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 778,747

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 64.8

|40,231

|3.3

|285,467

|23.8

|30,802

|2.6

|59,296

|4.9

align="left" |South Jeolla

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 737,921

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 59.9

|30,221

|2.5

|378,179

|30.7

|25,819

|2.1

|49,509

|4.0

align="left" |North Gyeongsang

|369,726

|21.7

|style="background:{{party color|Liberty Korea Party}};color:white;"| 827,237

|style="background:{{party color|Liberty Korea Party}};color:white;"| 48.6

|253,905

|14.9

|149,017

|8.8

|88,080

|5.2

align="left" |South Gyeongsang

|779,731

|36.7

|style="background:{{party color|Liberty Korea Party}};color:white;"| 790,491

|style="background:{{party color|Liberty Korea Party}};color:white;"| 37.2

|284,272

|13.4

|142,479

|6.7

|113,051

|5.3

align="left" |Jeju

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 169,493

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 45.5

|68,063

|18.3

|77,861

|20.9

|22,784

|6.1

|31,716

|8.5

- style="background:#E9E9E9"

! align="left" |Total

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 13,423,800

|style="background:{{party color|Democratic Party (South Korea, 2015)}};color:white;"| 41.1

|7,852,849

|24.0

|6,998,342

|21.4

|2,208,771

|6.8

|2,017,458

|6.2

colspan="11" align="left" |Source: [http://info.nec.go.kr/ National Election Commission]

== Minor candidates ==

Breakdown of votes by region for candidates with less than 1% of the total votes.

class="wikitable" style="text-align:right; font-size:95%"

! rowspan="3" |Region

! colspan="2" style="text-align:center;background: #E9E9E9" |Cho Won-jin

! colspan="2" style="text-align:center;background: #E9E9E9" |Kim
{{small|Min-chan}}

! colspan="2" style="text-align:center;background: #E9E9E9" |Kim
{{small|Sun-dong}}

! colspan="2" style="text-align:center;background: #E9E9E9" |Jang Sung-min

! colspan="2" style="text-align:center;background: #E9E9E9" |Yoon
{{small|Hong-sik}}

! colspan="2" style="text-align:center;background: #E9E9E9" |Lee
{{small|Kyung-hee}}

! colspan="2" style="text-align:center;background: #E9E9E9" |Lee Jae-oh

! colspan="2" style="text-align:center;background: #E9E9E9" |Ok
{{small|Young-guk}}

colspan="2" {{party color cell|Saenuri Party (2017)}}

| colspan="2" {{party color cell|Independent}}

| colspan="2" {{party color cell|People's United Party (South Korea)}}

| colspan="2" bgcolor="#FFA500"|

| colspan="2" bgcolor="#800080"|

| colspan="2" bgcolor="#FFFF66"|

| colspan="2" bgcolor="#085c81"|

| colspan="2" {{party color cell|Korea Economic Party}}

width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

! width="50px" |Votes

! width="25px" |%

align="left" |Seoul

|9,987

|0.2

|3,950

|0.1

|3,416

|0.1

|3,554

|0.1

|2,177

|0.0

|1,277

|0.0

|1,938

|0.0

|789

|0.0

align="left" |Busan

|2,651

|0.1

|2,156

|0.1

|981

|0.0

|1,316

|0.1

|1,041

|0.0

|496

|0.0

|465

|0.0

|276

|0.0

align="left" |Daegu

|4,057

|0.3

|1,501

|0.1

|804

|0.1

|563

|0.0

|986

|0.1

|401

|0.0

|324

|0.0

|259

|0.0

align="left" |Incheon

|2,646

|0.1

|1,681

|0.1

|1,230

|0.1

|1,618

|0.1

|625

|0.0

|594

|0.0

|410

|0.0

|374

|0.0

align="left" |Gwangju

|152

|0.0

|614

|0.1

|2,265

|0.2

|655

|0.1

|264

|0.0

|136

|0.0

|103

|0.0

|111

|0.0

align="left" |Daejeon

|1,069

|0.1

|758

|0.1

|611

|0.1

|620

|0.1

|406

|0.0

|256

|0.0

|234

|0.0

|168

|0.0

align="left" |Ulsan

|829

|0.1

|926

|0.1

|641

|0.1

|575

|0.1

|441

|0.1

|220

|0.0

|240

|0.0

|128

|0.0

align="left" |Sejong

|153

|0.1

|135

|0.1

|126

|0.1

|88

|0.0

|76

|0.0

|50

|0.0

|42

|0.0

|34

|0.0

align="left" |Gyeonggi

|10,778

|0.1

|6,553

|0.1

|6,139

|0.1

|5,058

|0.1

|2,883

|0.0

|2,213

|0.0

|1,858

|0.0

|1,302

|0.0

align="left" |Gangwon

|1,426

|0.1

|1,350

|0.1

|876

|0.1

|787

|0.1

|870

|0.1

|570

|0.1

|321

|0.0

|252

|0.0

align="left" |North Chungcheong

|1,153

|0.1

|1,347

|0.1

|840

|0.1

|722

|0.1

|943

|0.1

|686

|0.1

|421

|0.0

|308

|0.0

align="left" |South Chungcheong

|1,415

|0.1

|1,662

|0.1

|1,260

|0.1

|1,148

|0.1

|1,025

|0.1

|803

|0.1

|429

|0.0

|324

|0.0

align="left" |North Jeolla

|451

|0.0

|2,070

|0.1

|1,186

|0.1

|1,080

|0.1

|589

|0.0

|499

|0.0

|345

|0.0

|240

|0.0

align="left" |South Jeolla

|454

|0.0

|2,955

|0.2

|3,817

|0.3

|1,319

|0.1

|782

|0.1

|839

|0.1

|315

|0.0

|272

|0.0

align="left" |North Gyeongsang

|3,053

|0.2

|2,499

|0.1

|1,308

|0.1

|1,054

|0.1

|2,942

|0.2

|1,068

|0.1

|861

|0.1

|476

|0.0

align="left" |South Gyeongsang

|2,290

|0.1

|3,267

|0.2

|1,394

|0.1

|1,240

|0.1

|2,234

|0.1

|1,011

|0.0

|721

|0.0

|458

|0.0

align="left" |Jeju

|385

|0.1

|556

|0.1

|335

|0.1

|312

|0.1

|289

|0.1

|236

|0.1

|113

|0.0

|269

|0.1

style="background:#E9E9E9"

! align="left" |Total

|42,949

|0.1

|33,990

|0.1

|27,229

|0.1

|21,709

|0.1

|18,543

|0.1

|11,355

|0.0

|9,140

|0.0

|6,040

|0.0

colspan="17" align="left" |Source: [http://info.nec.go.kr/ National Election Commission]

= Maps =

File:South_Korean_presidential_election_2017.svg|Results by vote share

References

{{Reflist|30em}}

{{South Korean elections}}

{{2016 South Korean political scandal}}

{{Use dmy dates|date=March 2017}}

Category:2017 elections in South Korea

South Korea

Category:Presidential elections in South Korea