Nicknames for Ioannis
3 nicknames, sorted by where they actually get used.
Office-safe
Gio
formal
Playground-friendly
Yannis
casual
Giannis
casual
Ioannis carries 3 documented short forms — Yannis, Giannis, and Gio — drawn from its Greek-origin roots. The list splits into 1 office-safe pick and 2 playground-friendly options so you can match the moment.