daddypa
Noodles
Noodnick the Puissant
Noogie
Noogies
Nook
Noomster
Noonie
Nopurr
Nora
Norbert
Norgay
Nori
Noriko
Norka (Russian for "Mink")
Norma
Normajean
Norman
Norman Stanley Fletcher (from Porridge)
Norman Tinkle Tinkle
Normania
Normie
Norris
Northrup
Norton
Nose
Nosebud
Nosekins
Nosey
Nosferatu
Noster