Marat Natfulovich Kalimulin (Russian: ????? ?????????? ?????????; 20 August 1988 – 7 September 2011) was a Russian professional ice hockey defenceman who played for Lokomotiv Yaroslavl of the Kontinental Hockey League (KHL).
He was killed in the Lokomotiv Yaroslavl plane crash, in which almost all players and coaches from the club perished.