List of Baseball Player Nicknames - M

M

• "M&M Boys" =
  • Originally, teammates Roger Maris and Mickey Mantle, American right fielder and center fielder respectively
  • Later, teammates Joe Mauer and Justin Morneau, American catcher and Canadian first baseman respectively
• "Mad Bum" = Madison Bumgarner, American starting pitcher
• "Mad Dog" = Greg Maddux, American starting pitcher
• "The Mad Hungarian" = Al Hrabosky, American closer
• "The Mahatma" = Branch Rickey, American baseball executive
• "Marvelous Marv" = Marv Throneberry, United States baseball player
• "The Mayor" = Sean Casey, United States baseball player
• "Melk Man" = Melky Cabrera, United States baseball player
• "The Mick" = Mickey Mantle, American outfielder
• "Mickey" =
  • Gordon Cochrane, American catcher and manager
  • John Rivers, United States baseball player
• "Miggie" = Miguel Cabrera, Venezuelan baseball player
• "Minnie" = Saturnino Miñoso Arrieta, Cuban baseball player
• "Mr. Cub" = Ernie Banks, American shortstop and first baseman. So nicknamed because he played his entire Major League career with the Chicago Cubs.
• "Mr. March" = Alex Rodriguez, American shortstop and third baseman
• "Mr. May" = Dave Winfield, American outfielder (derogatory). Given the nickname by several sportswroters because they believed he peaked too early in the season.
• "Mr. October" = Reggie Jackson, American outfielder. Given the nickname after hitting four home runs in a single World Series game, a record that still stands to this day.
• "Mr. November" = Derek Jeter, American shortstop. The first MLB player to hit a World Series home run in the month of November.
• "Mo" = Mariano Rivera, Panamanian closer
• "Mookie" = William H. Wilson, United States baseball player
• "Moose" =
  • Mike Mussina, American starting pitcher
  • Bill Skowron, American first baseman
• "Mudcat" = Jim Grant, American starting pitcher
• "Muggsy" = Gary Allenson, United States baseball player
• "Mysterious" = Frederick Walker, United States baseball pitcher & baseball, basketball, & football coach
• "Mr. Sweet Swing" = Joe Mauer, American catcher