Olga Beresnyeva

Olga Beresnyeva (, ; born 12 October 1985 ), is an Olympic and national-record holding distance swimmer for Ukraine. She also competed for Israel between 2004 and 2010, before returning to her native Ukraine.

Career She has swum at the: Olympics: 2000, 2004, 2012 World Championships: 2003, 2005, 2009, 2011, 2013 European Championships: 2010 Open Water Worlds: 2008, 2010

She swam for Ukraine at her first Olympic Games in 2000, at the age of 14; After failing to qualify for the 2008 Olympics, Beresnyeva returned to Ukraine.

Originally a distance swimmer in the pool, she began swimming open water races in 2008.

She swam in her third Olympics in 2012, swimming the Open Water event, but was disqualified and excluded from the Games by the IOC in June 2015 after re-analysis of a drug test showed she had been doping.