Svitlana Demchenko (born October 4, 2003) is a Canadian chess player, who holds the title of Woman International Master (WIM). She played on the Canadian Women's Chess Olympiad team in 2018 on the fourth board, scoring 5½/9. She competed in the 2021 Women's Chess World Cup, where she pushed 35th seed Karina Cyfka to tiebreaks in the first round despite being rated more than 300 points lower, losing in the second set of rapid tiebreaks.