Mark Bennett may refer to:

• Mark Bennett (rugby union, born 1969), Welsh rugby union footballer
• Mark Bennett (rugby union, born 1993), Scottish rugby union footballer
• Mark Bennett (snooker player) (born 1963), former professional snooker player
• Mark J. Bennett (born 1953), former Hawaii Attorney General, judge of the United States Court of Appeals for the Ninth Circuit (2018–)
• Mark W. Bennett (born 1950), judge of the United States District Court for the Northern District of Iowa