Nicknames for Ioannis
3 nicknames, sorted by where they actually get used.
Office-safe
Gio
formal
Playground-friendly
Yannis
casual
Giannis
casual
About Ioannis nicknames: Most parents pick Ioannis 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.