Nicknames for Cossie
6 nicknames, sorted by where they actually get used.
Office-safe
Cos
formal
Coss
formal
Playground-friendly
Cossy
casual
Coy
casual
Coie
casual
Family nicknames
Coskins
endearment
Cossie carries 6 common short forms — Cos, Coss, and Cossy. The list splits into 2 office-safe picks and 3 playground-friendly options so you can match the moment.