This is a sub-list from List of doping cases in sport representing a full list of surnames starting with Z.
| Name | Country | Event | Banned substance(s) | Reference(s) |
|---|---|---|---|---|
| Erik Zabel |
 Germany
|
Cycling | Erythropoietin (EPO) (self-admitted) | |
| Ashkan Sharaf Zadeh |
 Iran
|
Swimming | Methandienone | |
| Shoaib Zahoor |
 Pakistan
|
Bodybuilding | ||
| Andrey Zakharov |
 Moldova
|
Swimming | Stanozolol | |
| Faat Zakirov |
 Russia
|
Cycling | NESP | |
| Aksana Zalatarova |
 Belarus
|
Weightlifting | ||
| Tommaso Zambelli |
 Italy
|
Swimming | Cannabis | |
| Matthew Zammit |
 Malta
|
Swimming | Stanozolol | |
| Mohamad Zawit |
 Syria
|
Weightlifting | Stanozolol, Metenolone, Methyltestosterone | |
| Zeng Liqing |
 China
|
Cycling | EPO | |
| Zetao Ning |
China
|
Swimming | Clenbuterol | |
| Zhang Bin |
China
|
Swimming | ||
| Zhang Lei |
China
|
Canoeing | ||
| Zhang Shuai |
China
|
Football (soccer) | Ephedrine | |
| Zhang Yi |
China
|
Swimming | Triamterene | |
| Nina Zhivanevskaya |
Russia
|
Swimming | Bromantane | |
| Zhou Guanbin |
China
|
Swimming | ||
| Zhou Jie |
China
|
Swimming | ||
| Zhou Mi |
 Hong Kong
|
Badminton | Clenbuterol | |
| Anastasia Ziablova |
Russia
|
Swimming | Nandrolone | |
| Spencer Zimmerman-Cryer |
 Canada
|
Canadian football | Oral-Turinabol | |
| Paula Zukowska |
 Poland
|
Swimming | Methylhexaneamine | |
| Alex Zülle |
 Switzerland
|
Cycling | Erythropoietin (EPO) | |
| Zuo Ziqiao |
China
|
Swimming | Clenbuterol | |
| Arthur Zwane |
 South Africa
|
Football (soccer) | Methyltestosterone | |
| Tara Zwink |
 United States
|
Snowboarding | cannabis |