Nicknames for Sergei
7 nicknames, sorted by where they actually get used.
Office-safe
Ser
formal
Serg
formal
Playground-friendly
Sergy
casual
Sergie
casual
Sey
casual
Seie
casual
Family nicknames
Serkins
endearment
Sergei carries 7 common short forms — Ser, Serg, and Sergy. The list splits into 2 office-safe picks and 4 playground-friendly options so you can match the moment.