Mark McGwire (baseball player); Mark Calcavecchia (golfer); Mark Chesnutt (musician); Mark Cuban (entrepreneur); Mark Grace (baseball player); Mark Harmon (actor); Mark Knopfler (musician); Mark Martin (racecar driver); Mark McGrath (TV personality and singer); Mark McKinney (SNL cast member); Mark Prior (baseball player); Mark Recchi (hockey player); Mark Teixeira (baseball player); Mark Wahlberg (actor); Mark Twain (pen name for Samuel Clemens)
