Aleksander Lesun, Russian modern pentathlete

Aleksander Leonidovich Lesun (Russian: Александр Леонидович Лесун; born 1 July 1988) is a Belarusian-Russian modern pentathlete. He is a multiple-time medalist at the World and European Championships, and was a top-ranked male modern pentathlete in the world by the Union Internationale de Pentathlon Moderne (UIPM).