Paris - Île-de-France
- Nonis
- Nonnon
- Nonon
- Norat
- Nordlinger
- Noret
- Norguet
- Norman
- Normant
- Norris
- North
- Norton
- Nosjean
- Not
- Notin
- Notter
- Nottin
- Nou
- Nouailhac
- Nouani
- Noubel
- Noudelmann
- Noufal
- Nouioui
- Nouvelot
- Nouvian
- Novarina
- Nowacki
- Nozieres
- Nseir
- Ntsama
- Nudelman
- Nuytens
- Nyam
- Négrier
- O Leary
- O Neil
- O Neill
- O'byrne
- O'callaghan
- O'hana
- O'sullivan
- Obedia
- Obeng
- Obeniche
- Oberhauser
- Oble
- Oblet
- Oblin
- Oboeuf
- Obrenovic
- Oddou
- Odent
- Odic
- Ody
- Offenstadt
- Offner
- Offredo
- Ofman
- Ogawa
- Ogee
- Ogereau
- Ogé
- Oiffer
- Oiknin
- Ojalvo
- Oktay
- Olariu
- Olivari
- Olivereau
- Oliveros
- Olivesi
- Ollagnon
- Olmi
- Olmos
- Olsen
- Olszewski
- Olympie
- Om
- Omasson
- Omrane
- Opala
- Ophele
- Opigez
- Oprandi
- Oranger
- Orban
- Ordinaire
- Ordonneau
- Oren
- Orenstein
- Orihuela
- Orinel
- Orliaguet
- Orlik
- Orlinski
- Orphelin
- Orr
- Orsetti
- Orsi
