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- Sal Maglie, Major League baseball player
- Carlo MacDonald (Italian born mother), Rugby player
- Ray Mancini, boxer
- Gus Mancuso, Major League baseball player
- Sammy Mandell, boxer
- Gino Marchetti, football player
- Rocky Marciano, boxer
- Ed Marinaro, football player
- Dan Marino, football player
- Hank Marino, bowler
- John Mariucci, hockey player
- Billy Martin, Major League baseball player
- Rollie Massimino, basketball coach
- Joey Maxim, boxer
- Phil Mickelson, golfer
- Joe Montana, football player
- Willie Mosconi, billiard player
- George Musso, football player
Read more about this topic: List Of Members Of The Italian American Sports Hall Of Fame