The name Seb is a boy's name of Egyptian origin meaning "God of the earth". Seb and is often added to lists like Nicknames for Boys and discussed in our forums with posts like "Names on NB that make you go WOW!".
From the experts:
This name, more recognized as a short form of Sebastian, is perfectly usable a cool full name, and, in fact, ranks on the UK popularity list. Seb is getting lot of attention as the nickname name of the Ryan Gosling character in the hit film La La Land.