- Maatman
- MacHalek
- MacKert
- MacVicar
- Madea
- Madison
- Magliola
- Mahlan
- Mahoney
- Sponsored Link
- Maish
- Maitland
- Major
- Makely
- Malave
- Malek
- Malone
- Maloney
- Mamula
- Manak
- Mandic
- Mangan
- Manzer
- Marasso
- Marchant
- Marek
- Markert
- Marks
- Marrs
- Marsaglia
- Marsan
- Marsden
- Marshall
- Martello
- Martin
- Masa
- Mascitti
- Maselli
- Maslan
- Mason
- Masson
- Massura
- Materna
- Mathes
- Matheson
- Matic
- Matthies
- Mattiuz
- Matulyauskas
- Mauer
- Maurer
- Mauser
- Mazur
- McCaig
- McCandless
- McCarthy
- McCarty
- McCormick
- McCracken
- McDavid
- McDonald
- McDowell
- McElhaney
- McGady
- McGivern
- McGoldrick
- McGrath
- McGuire
- McInnis
- McLeod
- McMenamin
- McNeeley
- McNeil-Marshall
- McNellis
- McQuaid
- McQue
- McReynolds
- Meacham
- Meany
- Meegan
- Meek
- Meifert
- Meiser
- Mejdrich
- Menard
- Menditto
- Mercy
- Mersch
- Mertz
- Mesch
- Metzl
- Micatka
- Michel
- Miciunas
- Mickas
- Mickle
- Mickley
- Milhouse
- Miller
- Minardi
- Misek
- Mitchell
- Mizener
- Mochel
- Mojzis
- Mokos
- Molaro
- Monaco
- Mond
- Monroe
- Montes
- Montgomery
- Moore
- Moran
- Moravec
- Mordente
- Morini
- Morley
- Morris
- Morrow
- Morse
- Moser
- Mowen
- Mudra
- Mudrak
- Muehlaus
- Mueller
- Mukenschnabl
- Mulcrone
- Mullen
- Mullens
- Munoz
- Munro
- Munsie
- Murdock
- Murphy
- Murray
- Musielak
- Musil
- Myczek
- Myers
- Myles
- Mysliwiec