Sviatlana Usovich (Belarusian: Святлана Вусовіч; born 14 October 1980) is a Belarusian sprinter who specializes in the 400 metres.

Her younger sister, Ilona, is also an athlete.

On 25 November 2016 the IOC disqualified her (and her relay team) from the 2008 Olympic Games and struck her results from the record for failing a drugs test in a re-analysis of his doping sample from 2008.

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