Nicknames for Killian
10 nicknames, sorted by where they actually get used.
Office-safe
Kil
formal
Kill
formal
Ian
formal
Playground-friendly
Killy
casual
Killie
casual
Iany
casual
Ianie
casual
Kiy
casual
Kiie
casual
Family nicknames
Kilkins
endearment
About Killian nicknames: Most parents pick Killian 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.