Denis Viktorovich Kapustin (Russian: ????? ?????????? ????????; born October 5, 1970 in Kazan, Respublika Tatarstan) is a retired male triple jumper from Russia.
Best known for winning the bronze medal at the 2000 Summer Olympics, he is also the 1994 European champion.
His personal best jump is 17.65 metres, which he achieved in 1998.