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