This is a sub-list from List of doping cases in sport representing a full list of surnames starting with T.
| Name | Country | Event | Banned substance(s) | Reference(s) |
|---|---|---|---|---|
| Tang Ninsha |
 China
|
Swimming | Metandienone | |
| Ekaterina Tankeeva |
 Russia
|
Water polo | ||
| Ibrahim Tanko |
 Ghana
|
Football (soccer) | cannabis | |
| Anissa Tann |
 Australia
|
Football (soccer) | Nandrolone | |
| Alvaro Tardaguila |
 Uruguay
|
Cycling | r-EPO | |
| Antonio Tarver |
 United States
|
Boxing | Drostanolone | |
| Martin Tauber |
 Austria
|
Cross-country skiing | Violation of blood doping rules | |
| Irina Tchachina |
Russia
|
Rhythmic gymnastics | Furosemide | |
| Rosa Tenerio |
 Ecuador
|
Weightlifting | ||
| Michail Tetteris |
 Greece
|
Water polo | Budesonide | |
| Than Kyi Kyi |
 Myanmar
|
Weightlifting | Diuretic | |
| Upul Tharanga |
 Sri Lanka
|
Cricket | Prednisone, Prednisolone | |
| José Théodore |
 Canada
|
Ice hockey | Finasteride | |
| Pan Yar Thet |
Myanmar
|
Weightlifting | ||
| Gert-Jan Theunisse |
 Netherlands
|
Cycling | Admitted use of celestone | |
| Tammy Thomas |
United States
|
Cycling | Testosterone | |
| Leks Tomasz |
 Poland
|
Weightlifting | ||
| Do Thi Ngan Thuong |
 Vietnam
|
Gymnastics | Furosemide | |
| Tian Nannan |
China
|
Swimming | Drostanolone | |
| Egor Titov |
Russia
|
Football (soccer) | Bromantan | |
| Richard Tkac |
 Slovakia
|
Weightlifting | Boldenone, Androsterone | |
| Paola Todaro |
 Italy
|
Water polo | Cocaine | |
| Olibia Toka |
Greece
|
Weightlifting | Methyltrienolone, Buprenorphine | |
| Rajiv Tomar |
 India
|
Wrestling | Methylhexaneamine | |
| James Toney |
United States
|
Boxing | Nandrolone | |
| Jasdeep Toor |
Canada
|
Football (soccer) | Methylhexaneamine | |
| Bela Torok |
 Hungary
|
Water polo | Hydrochlorothiazide | |
| Anthony Torres |
United States
|
Mixed martial arts | Boldenone | |
| Kolo Touré |
 Ivory Coast
|
Football (soccer) | ||
| Mark Tout |
 United Kingdom
|
Bobsleigh | Stanozolol | |
| Pawel Trenda |
Poland
|
Swimming | Cannabis | |
| Anastasios Triantafyllou |
Greece
|
Weightlifting | Stanozolol, Methyltrienolone | |
| Viktor Troicki |
 Serbia
|
Tennis | Refusal to submit to doping test | |
| Alan Tsagaev |
 Bulgaria
|
Weightlifting | Steroids | |
| Thomas Tsakirakis |
Greece
|
Water polo | Stanozolol | |
| Felix Tsarikaev |
Russia
|
Wrestling | Hydroxystanozolol | |
| Phil Tufnell |
United Kingdom
|
Cricket | Missed drug test | |
| Shemshat Tuliayeva |
 Belarus
|
Weightlifting | Clenbuterol | |
| Ben Tune |
Australia
|
Rugby | ||
| Hedo Türkoğlu |
 Turkey
|
Basketball | Methenolone | |
| Billy Turley |
 England
|
Football (soccer) | Nandrolone (2002) cocaine (2004) | |
| Federico Turrini |
Italy
|
Swimming | 19-norandrosterone | |
| Ano Turtiainen |
 Finland
|
Powerlifting | Androgenic drugs | |
| Alexandra Tziouti |
Greece
|
Cycling | Nandrolone |