| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Dumitru Captari |
 ROU |
WLF |
Olympics |
2016 |
2016 Rio - 77kg (AC) - Under investigation for a doping offence that involved allegedly swapping urine samples provided for tests "over a period of time in 2016". |
| Valiantsina Kaminskaya |
 BLR
 UKR |
CCS |
Olympics |
2014—2022 |
2022 Beijing - Reported as testing positive for Epiandrosterone and heptaminol at the 2022 Games |
| Tatyana Kashirina |
 RUS |
WLF |
Olympics |
2012 |
2012 London - WADA won an appeal at CAS 28/8/23 over doping offences from the Moscow Lab (LIMS) system. Reports from Russia state she has been banned for 8 years but the score of the voided results (believed to be from between 2011 and 2013) is not known at the moment |
| Tamás Kenderesi |
 HUN |
SWM |
Olympics / YOG |
2014—2020 |
2020 Tokyo - Under investigation for biological passport irregularities |
| Rattikan-Siripuch Kulnoi |
 THA |
WLF |
Olympics |
2012—2016 |
2012 London - Under investigation after admitting to doping 2011-2012 on a television documentary |
| Antonis Martasidis |
 CYP |
WLF |
Non-starter |
2016 |
Tested positive prior to Rio. Withdrawn from competition shortly before the event. |
| Sadik Mikhou |
 BRN |
ATH |
Olympics |
2020 |
2020 Tokyo - Charged with using a prohibited method – blood manipulation |
| Divine Oduduru |
 NGR |
ATH |
Olympics |
2016—2020 |
Accused on receiving doping products before 2020(2021) Tokyo Olympics |
| Roilya Ranaivosoa |
 MRI |
WLF |
Olympics / Other |
2016—2020 |
2016 Rio - Under investigation for possible sample swapping and tampering in March 2016 |
| Roilya Ranaivosoa |
MRI |
WLF |
Olympics / Other |
2016—2020 |
2020 Tokyo - Under investigation for possible sample swapping and tampering in March 2016 |
| Yuliya Sapunova-Yelistratova |
UKR |
TRI |
Olympics / Non-starter |
2008—2020 |
2020 Tokyo - Charged over the presence of EPO in a test from June 2021 |
| Hossein Saveh Shemshaki |
 IRI |
ALP |
Olympics / Other |
2010—2022 |
2022 Beijing - Positive for Turnibol in pre-Games testing |
| Tandara |
 BRA |
VVO |
Olympics |
2012—2020 |
2020 Tokyo - Charged over the presence of Ostarine in a test from July 2021 |
| Kamila Valiyeva |
 ROC |
FSK |
Olympics |
2022 |
2022 Beijing - Reported as testing positive for Trimetazidine prior to the 2022 Games |