Ostap Vital'yevich Kovalenko (; born 1 March 2001) is a Russian tennis player.
Kovalenko has a career high ITF junior combined ranking of 326 achieved on 31 December 2018.
Kovalenko made his ATP main draw debut at the 2020 New York Open after receiving a wildcard for the doubles main draw.
Kovalenko played college tennis for Hofstra University under Head Coach Jason Pasion.