Oleksii Krutykh (born 10 March 2000) is a Ukrainian tennis player. Krutykh has a career high ATP singles ranking of World No. 188 achieved on 5 December 2022. He also has a career high doubles ranking of World No. 275 achieved on 5 December 2022. He is currently the No. 1 Ukrainian tennis player. Krutykh has won 2 ATP Challenger singles titles and 2 doubles titles.