- Maundrell
- Mavin
- Mawditt
- Maxfield
- Maxon
- Maxwell
- Maxwell-Lyte
- May
- Maybank
- Mayfield
- Mayhew
- Maynard
- Mayo
- Mayor
- Mays
- Mayston
- Maze
- Mazza
- McAfee
- McAliece
- McAlister
- McAllery
- McAllister
- McAlpine
- McAndrew
- McArthur
- McBee
- McBreatley
- McBride
- McBridge
- McCabe
- McCarthy
- McCauley
- McCavish
- McClelland
- McCloskey
- McClymont
- McColl
- McCondra
- McConnell
- McCord
- McCormack
- McCormick
- McCorquodale
- McCouge
- McCourt
- McCracken
- McCrary
- McCray
- McCready
- McCreight
- McCulloch
- McCullock