|Born||16 January 1990|
Rivne, Ukrainian SSR, Soviet Union
|Height||1.65 m (5 ft 5 in)|
|Weight||55 kg (121 lb)|
Olha Zemlyak (Ukrainian: Ольга Миколаївна Земляк; born 16 January 1990) is a Ukrainian athlete who competes in the sprint.
Zemlyak won the gold medal with Ukraine at the 2012 European Athletics Championships in Helsinki in the 4 × 400 metres relay.
Zemlyak tested positive for norandrosterone at the 2009 European Athletics Junior Championships and was subsequently banned from sports for two years. Her results from the championships were annulled, and Ukraine lost the 4 × 400 metre relay gold. The competition ban ended 24 August 2011.
Zemlyak then tested positive again on the eve of the 2017 World Championships in Athletics and was suspended from competing in the championships.
In March 2019, the CAS confirmed that Zemlyak committed the anti-doping rule infractions and confirmed the UAF Executive Committee decisions about disqualification of Zemlyak for eight years starting from 5 July 2016. Her results at the 2016 Olympic Games were annulled.
|2008||World Junior Championships||Bydgoszcz, Poland||18th (sf)||400 m||54.66|
|2nd||4 × 400 m relay||3:34.20|
|2009||European Junior Championships||Novi Sad, Serbia||DSQ (4th)||400 m||(54.46) Doping|
|DSQ (1st)||4 × 400 m relay||(3:35.82) Doping|
|2012||European Championships||Helsinki, Finland||4th||400 m||52.01|
|1st||4 × 400 m relay||3:25.07 (EL)|
|Olympic Games||London, United Kingdom||3rd||4 × 400 m relay||3:23.57|
|2014||European Team Championships||Braunschweig, Germany||3rd||400 m||52.28|
|1st||4 × 400 m relay||3:27.66|
|European Championships||Zürich, Switzerland||2nd||400 m||51.36|
|2nd||4 × 400 m relay||3:24.32|
|2015||World Championships||Beijing, China||27th (h)||400 m||52.00|
|5th||4 × 400 m relay||3:25.94|
|2016||European Championships||Amsterdam, Netherlands||14th (sf)||400 m||52.58|
|6th||4 × 400 m relay||3:27.64|
|Olympic Games||Rio de Janeiro, Brazil||DSQ (7th)||400 m||51.24|
|DSQ (5th)||4 × 400 m relay||3:26.64|