Olesya Leonidovna Nurgalieva (born 9 January 1976 in Perm Krai; Russian: Олеся Леонидовна Нургалиева) is a Russian ultramarathon runner. She won the Two Oceans Marathon 3 times and the Comrades Marathon twice, and together with her identical twin Elena Nurgalieva dominated the Comrades and Two Oceans, South Africa's main ultramarathons, from 2003 to 2014.[1][2]