Kim Ju-sung

{{Short description|Korean association football player}}

{{family name hatnote|Kim||lang=Korean}}

{{Use dmy dates|date=February 2024}}

{{Infobox football biography

| name = Kim Ju-sung

| image = 240824 FC 서울 vs 강원 (김주성).jpg

| caption = Kim in 2024

| full_name =

| birth_date = {{birth date and age|2000|12|12|df=y}}

| birth_place = South Korea

| height = 1.86 m

| position = Centre-back

| currentclub = FC Seoul

| clubnumber = 30

| youthyears1 = 2013–2015

| youthclubs1 = Osan Middle School (Youth)

| youthclubs2 =Osan High School (Youth)

| youthyears2 = 2016–2018

| years1 = 2019–

| clubs1 = FC Seoul

| caps1 = 99

| goals1 = 2

| years2 = 2021–2022

| clubs2 = → Gimcheon Sangmu (draft)

| caps2 = 15

| goals2 = 0

| nationalyears1 = 2015–2016

| nationalteam1 = South Korea U17

| nationalcaps1 = 9

| nationalgoals1 = 0

| nationalyears2 = 2019

| nationalteam2 = South Korea U20

| nationalcaps2 = 2

| nationalgoals2 = 0

| nationalyears3 = 2021–

| nationalteam3 = South Korea U23

| nationalcaps3 = 5

| nationalgoals3 = 0

| nationalyears4 = 2022–

| nationalteam4 = South Korea

| nationalcaps4 = 2

| nationalgoals4 = 0

| medaltemplates =

{{Medal|Sport|Men's football}}

{{Medal|Country|{{Fb|KOR}}}}

{{Medal|Competition|EAFF Championship}}

{{Medal|RU|2022 Japan|Team}}

{{Medal|Comp|FIFA U-20 World Cup}}

{{Medal|RU|2019 Poland|}}

| club-update = 12 April 2025

| nationalteam-update = 17 October 2023

}}

{{Infobox Korean name|hangul=김주성|hanja={{linktext|金|朱|晟}}|mr= Kim Chusŏng|rr= Kim Juseong}}

Kim Ju-sung ({{Ko-hhrm|김주성}}; born 12 December 2000) is a South Korean footballer who plays as a centre back for FC Seoul and the South Korea national team.