- Mazerolle(suite)
- Mazet
- Mazière
- Mazur
- Mazzelli
- Mazzilli
- McAdam
- McAfee
- McAleer
- McAllister
- McAloney
- McAloon
- McArdle
- McArdle McArdle
- McArthur
- McAuliffe
- McBain
- McBride
- McBrien
- McBroome
- McCabe
- McCaffrey
- McCaie
- McCall
- McCann
- McCardle
- McCarren
- McCarron
- McCarthy
- McCarty
- McCaughlin
- McClay
- McClosky
- McCloud
- McClure
- McColeman
- McComb
- McConille
- McConnell
- McCool
- McCormack
- McCormick
- McCourt
- McCracken
- McCray
- McCrohan
- McCrossin
- McCrum
- McCubbin
- McCullen
- McCullough
- McCully
- McCurdy
- McCusker
- McCutcheon
- McDermott
- McDevitt
- McDonald
- McDonough
- McDougall
- McDralty
- McEachern
- McEacheron
- McEncrove
- McEncrowe
- McEvoy
- McEwen
- McFadden
- McFadden-Léger
- McFadgen
- McFarland
- McFarlane
- McFee
- McGann
- McGarry
- McGean
- McGee
- McGeehan
- McGill