Olena Ihorivna Demidova (Ukrainian: ÃÂûõýð ÃÂóþÃÂÃÂòýð ÃÂõüøôþòð, born 10 September 1995) is a Ukrainian track cyclist.
In 2013, Demidova won a bronze medal at the European Track Cycling Championships.
That same year, she won the team pursuit at the International Pista Cup together with Hanna Nahirna and Hanna Solovey.
In 2017, she finished second in the women's stage race at the Ukrainian National Road Championships.