Yuliya Anatoliyivna Tkach, née Ostapchuk, (Ukrainian: Юлія Анатоліївна Ткач (Остапчук); also transliterated Iulia, born 26 September 1989 in Kovel) is a Ukrainian freestyle wrestler.

[1] World champion in 2014, she competed for Ukraine at the 2008, 2012 and 2016 Summer Olympics.

[2][3][4][5] At the 2008 Summer Olympics, she lost to Randi Miller in her first match.

[4] Tkach competed in the freestyle 63 kg event at the 2012 Summer Olympics; she defeated Yelena Shalygina in the quarterfinals and Marianna Sastin in the 1/8 finals before being eliminated by Lubov Volosova in the quarterfinals.

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