Nicknames for Kostas
7 nicknames, sorted by where they actually get used.
Office-safe
Kos
formal
Kost
formal
Playground-friendly
Kosty
casual
Kostie
casual
Koy
casual
Koie
casual
Family nicknames
Koskins
endearment
About Kostas nicknames: Most parents pick Kostas 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.