Nicknames for Sioux
4 nicknames, sorted by where they actually get used.
Office-safe
Sio
formal
Playground-friendly
Siy
casual
Siie
casual
Family nicknames
Siokins
endearment
Sioux carries 4 common short forms — Sio, Siy, and Siie. The list splits into 1 office-safe pick and 2 playground-friendly options so you can match the moment.