List of Grand Prix motorcycle racers: M

• Kevin Magee
• Renato Magi
• Randy Mamola
• Tomomi Manako
• Anton Mang
• Gyula Marsovsky
• Jorge Martínez
• Alexis Masbou
• Umberto Masetti
• Claudio Mastellari
• Naoki Matsudo
• Giuseppe Matucci
• Cromie McCandless
• Garry McCoy
• Niall Mackenzie
• Eric McPherson
• Jeremy McWilliams
• Ronald Mead
• Marco Melandri
• Jack Middelburg
• Gilberto Milani
• Sammy Miller
• Derek Minter
• Kevin Mitchell
• Luca Morelli
• Chas Mortimer
• Stefano Musco
• Benoit Musy