Nicknames for Onnie
4 nicknames, sorted by where they actually get used.
Office-safe
Onn
formal
Playground-friendly
Ony
casual
Onie
casual
Family nicknames
Onnkins
endearment
About Onnie nicknames: Most parents pick Onnie for the full formal sound. Then they reach for a shorter form at home. The office version and the playground version are usually different — that's the split above.