Dmitry Yevgenyevich Popko (; born 24 October 1996) is a Russian-born Kazakhstani tennis player who competes on the ATP Challenger tour. He has a career high ATP singles ranking of World No. 155 achieved on 21 April 2025 and a doubles ranking of No. 304 achieved on 1 May 2017. He is the current No. 4 Kazakh player.
Popko represents Kazakhstan at the Davis Cup where he has a win-loss record of 4-6.
Popko defeated Chinese tennis player Zhang Ze in his first Davis Cup tie in April 2017.
Popko participated in qualifying for all four of the Grand Slams.