Olena Tsyos (; born 9 May 1990, Lutsk) is a Ukrainian track cyclist. At the 2012 Summer Olympics, she competed in the Women's team sprint for the national team, which finished in fourth place.

Major results 2013 1st Sprint, Grand Prix of Russian Helicopters 1st 500m Time Trial, Copa Internacional de Pista 2014 Grand Prix Galichyna 1st Sprint 1st Team Sprint (with Olena Starikova) 1st 500m Time Trial 2nd Keirin 3rd Keirin, Panevezys Grand Prix Minsk 3rd Keirin 3rd Sprint

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