Nikita Marselovych Mashtakov (; born 18 March 1999) is a Ukrainian tennis player. He has a career high ATP singles ranking of world No. 575 achieved on 13 January 2020 and a doubles ranking of No. 610 achieved on 10 December 2024.
On the junior tour, Mashtakov has a career high ranking of No. 24, achieved on 23 January 2017.
Mashtakov has represented Ukraine in the Davis Cup, where he has a winâÂÂloss record of 0âÂÂ1.