| class="wikitable sortable" style="font-size:95%; width:95%;" |
| style="background:#ccf; class=;"sortable"
!Name
!Country
!Event
!Banned substance(s)
!Reference(s) |
| Erik Zabel
|{{GER}}
|Cycling
|Erythropoietin (EPO) (self-admitted)
|[{{cite news| url=http://news.bbc.co.uk/sport2/hi/other_sports/cycling/6687307.stm | work=BBC News | title=Zabel admits to doping at Telekom | date=2007-05-24 | accessdate=2010-05-08 |archiveurl=https://web.archive.org/web/20131031032712/http://news.bbc.co.uk/sport2/hi/other_sports/cycling/6687307.stm |archivedate=2013-10-31 |url-status=live}}] |
| Ashkan Sharaf Zadeh
|{{IRI}}
|Swimming
|Methandienone
|[[http://www.fina.org/H2O/index.php?option=com_docman&task=doc_download&gid=14&Itemid=230 2005 Doping Cases Report] {{webarchive|url=https://web.archive.org/web/20100618084832/http://www.fina.org/H2O/index.php?option=com_docman&task=doc_download&gid=14&Itemid=230 |date=2010-06-18 }}.] |
| Shoaib Zahoor
|{{PAK}}
|Bodybuilding
|
|[{{cite web|title=Pak bodybuilders test positive, dropped from Asiad squad|url=http://www.dnaindia.com/sport/report-pak-bodybuilders-test-positive-dropped-from-asiad-squad-1066627|website=DNA India|accessdate=15 January 2016}}] |
| Andrey Zakharov
|{{MDA}}
|Swimming
|Stanozolol
|[[http://www.fina.org/H2O/index.php?option=com_docman&task=doc_download&gid=17&Itemid=230 2008 Doping Cases Report] {{webarchive|url=https://web.archive.org/web/20100618084941/http://www.fina.org/H2O/index.php?option=com_docman&task=doc_download&gid=17&Itemid=230 |date=2010-06-18 }}.] |
| Faat Zakirov
|{{RUS}}
|Cycling
|NESP
|[{{cite news|url=http://sport.guardian.co.uk/breakingnews/feedstory/0,,-5977974,00.html |work=The Guardian |location=London |date=2008-02-10 |title=Sport |archiveurl=https://archive.today/20130114013139/http://www.guardian.co.uk/sport |archivedate=2013-01-14 |url-status=dead |accessdate=2010-05-08 }}] |
| Aksana Zalatarova
|{{BLR}}
|Weightlifting
|
|[[http://www.iwf.net/anti-doping/sanctioned-athletes/ Sanctioned athletes] {{webarchive|url=https://web.archive.org/web/20140407131609/http://www.iwf.net/anti-doping/sanctioned-athletes/ |date=2014-04-07 }}.] |
| Tommaso Zambelli
|{{ITA}}
|Swimming
|Cannabis
| |
| Matthew Zammit
|{{MLT}}
|Swimming
|Stanozolol
|[[http://www.fina.org/H2O/index.php?option=com_docman&task=doc_download&gid=62&Itemid=230 2010 Doping Cases Report] {{webarchive|url=https://web.archive.org/web/20120413015711/http://www.fina.org/H2O/index.php?option=com_docman&task=doc_download&gid=62&Itemid=230 |date=2012-04-13 }}.] |
| Mohamad Zawit
|{{SYR}}
|Weightlifting
|Stanozolol, Metenolone, Methyltestosterone
| |
| Zeng Liqing
|{{CHN}}
|Cycling
|EPO | [[http://www.cyclingnews.com/news/chinese-rider-banned Chinese rider banned]] |
| Zetao Ning
|{{CHN}}
|Swimming
|Clenbuterol
|[[http://www.fina.org/H2O/docs/ad_cases_dopingcasesreport2011.pdf 2011 Doping Cases Report] {{webarchive|url=https://web.archive.org/web/20131113182951/http://www.fina.org/H2O/docs/ad_cases_dopingcasesreport2011.pdf |date=2013-11-13 }}.] |
| Zhang Bin
|{{CHN}}
|Swimming
|
|[{{cite web |url=http://www.deseretnews.com/article/391263/CHINESE-FACE-PUNISHMENT-OVER-DRUG-TESTS.html?pg=all |archive-url=https://web.archive.org/web/20130826180042/http://www.deseretnews.com/article/391263/CHINESE-FACE-PUNISHMENT-OVER-DRUG-TESTS.html?pg=all |url-status=dead |archive-date=August 26, 2013 |date=December 4, 1994 |title=CHINESE FACE PUNISHMENT OVER DRUG TESTS |website=Deseret News |accessdate=2013-08-20}}] |
| Zhang Lei
|{{CHN}}
|Canoeing
|
| |
| Zhang Shuai
|{{CHN}}
|Football (soccer)
|Ephedrine
|[{{cite news |title=Chinese doping chronology |website=Reuters |date=29 July 2008 |archive-url=https://web.archive.org/web/20220717021401/https://www.reuters.com/article/us-olympics-doping-china-chronology-idUSL761329820080729 |archive-date=2022-07-17 |url-status=live |url=https://www.reuters.com/article/us-olympics-doping-china-chronology-idUSL761329820080729}}] |
| Zhang Yi
|{{CHN}}
|Swimming
|Triamterene
|[{{cite news |url=https://www.nytimes.com/1998/01/15/sports/swimming-samaranch-says-china-is-losing-votes-for-2008.html |title=SWIMMING; Samaranch Says China Is Losing Votes for 2008 |date=15 January 1998 |accessdate=2013-08-20}}] |
| Nina Zhivanevskaya
|{{RUS}}
|Swimming
|Bromantane
|[{{cite news|url=https://query.nytimes.com/gst/fullpage.html?res=9D0CEFD91439F932A05754C0A960958260 |work=The New York Times |title=ATLANTA: DAY 12 -- NOTEBOOK;Three Ejected for Drug Use |date=1996-07-31 |accessdate=2010-05-08 |archiveurl=https://archive.today/20120527021056/http://www.nytimes.com/1996/07/31/sports/atlanta-day-12-notebook-three-ejected-for-drug-use.html |archivedate=2012-05-27 |url-status=live }}] |
| Zhou Guanbin
|{{CHN}}
|Swimming
|
| |
| Zhou Jie
|{{CHN}}
|Swimming
| | [[http://www.timesofmalta.com/articles/view/20051223/sport/suspension-puts-focus-back-on-china-swimmers.68277 Suspension puts focus back on China swimmers]] |
| Zhou Mi
|{{HKG}}
|Badminton
|Clenbuterol
|[[http://www.thestar.com.my/story.aspx?sec=sports&file=%2f2010%2f9%2f6%2fsports%2f6986033 Zhou Mi: I did not take banned drugs knowingly]] |
| Anastasia Ziablova
|{{RUS}}
|Swimming
|Nandrolone
| |
| Spencer Zimmerman-Cryer
|{{CAN}}
|Canadian football
|Oral-Turinabol
|[{{cite web |title=Waterloo football player makes doping history |date=2010-09-08 |website=The Globe and Mail |archive-url=https://web.archive.org/web/20210407054135/https://www.theglobeandmail.com/sports/football/waterloo-football-player-makes-doping-history/article1213460/ |archive-date=2021-04-07 |url-status=live |url=https://www.theglobeandmail.com/sports/football/waterloo-football-player-makes-doping-history/article1213460/}}] |
| Paula Zukowska
|{{POL}}
|Swimming
|Methylhexaneamine
|[{{cite news|url=http://www.swimmingworldmagazine.com/lane9/news/World/34731.asp?q=FINA-Announces-Pair-of-Doping-Violations|work=Swimming World Magazine|title=FINA Announces Pair of Doping Violations|date=2013-06-17|accessdate=2013-06-17|url-status=dead|archiveurl=https://web.archive.org/web/20131202234224/http://www.swimmingworldmagazine.com/lane9/news/World/34731.asp?q=FINA-Announces-Pair-of-Doping-Violations|archivedate=2013-12-02}}] |
| Alex Zülle
|{{SUI}}
|Cycling
|Erythropoietin (EPO)
|[{{cite web |url=http://youcantsaythat.wordpress.com/2007/08/07/the-sponsors-made-me-do-it/ |title=Archived copy |website=youcantsaythat.wordpress.com |access-date=2 February 2022 |archive-url=https://archive.today/20120630062044/http://youcantsaythat.wordpress.com/2007/08/07/the-sponsors-made-me-do-it/ |archive-date=30 June 2012 |url-status=dead}}] |
| Zuo Ziqiao
|{{CHN}}
|Swimming
|Clenbuterol
| |
| Arthur Zwane
|{{ZAF}}
|Football (soccer)
|Methyltestosterone
|[{{cite web|url=http://www.iol.co.za/index.php?set_id=6&click_id=19&art_id=qw1075809060233S163 |title=News - Soccer: Two-year ban for Chiefs star |archiveurl=https://archive.today/20120630062054/http://www.iol.co.za/sport/two-year-ban-for-chiefs-star-1.532076%23.T-6auqgo_KA |archivedate=2012-06-30 |url-status=live }}] |
| Tara Zwink
|{{USA}}
|Snowboarding
|cannabis
|[{{cite news|url=http://sportsillustrated.cnn.com/wintersports/news/2003/03/18/snowboard_suspension_ap/ |work=CNN |access-date=2010-05-08 |title=Zwink gets two-year ban |archive-url=https://archive.today/20120630062046/http://sportsillustrated.cnn.com/wintersports/news/2003/03/18/snowboard_suspension_ap/ |archive-date=2012-06-30 |url-status=dead }}] |