- Madelon
- Mahieu
- Mallory
- Malory
- Mandel
- Mansel
- Mansell
- Mantel
- Manuel
- Marc
- Marceau
- Marcel
- Marlon
- Marq
- Marque
- Marquis
- Marshal
- Marshall
- Maslin
- Mason
- Masselin
- Masson
- Mathieu
- Matthieu
- Maurice
- Maxime
- Mayhew
- Maynard
- Mayne
- Maynor
- Melville
- Mercer
- Merle
- Merlion
- Merlin
- Michel
- Michele
- Mikel
- Millard
- Miquel
- Montagu
- Montague
- Montaigu
- Montaine
- Monte
- Montgomery
- Monty
- Moor
- Moore
- More
- Morell
- Mort
- Mortimer
- Morty