Mikhail Mikhailovich Youzhny (Russian: Михаил Михайлович Южный (help·info) (mixaˈil ˈjuʒnɨj) born 25 June 1982, in Moscow, USSR (now Russia), is a professional Russian tennis player, noted for his consistency and all-court play style.

The highest singles world ranking of his career was number eight, achieved on 28 January 2008.

Youzhny has a unique backhand, in which he mainly hits one-handed, but also has somewhat of a hybrid reminiscent to that of Björn Borg. Youzhny at times will follow through his backhand with both hands, but with only his right hand on his racket. Even so, many consider his backhand to be his best shot. From both sides, Youzhny hits the ball on the rise, achieving a flatter trajectory. He has a good court sense and often makes use of dropshots.