The name Severin is a boy's name of German, French origin meaning "stern, serious". Severin and is often added to lists like Olympic Baby Names and discussed in our forums with posts like "Names on NB that make you go WOW!".
From the experts:
Severin is an ancient Roman family name borne by several early saints. It's still alive throughout Europe, and could be ready for import here. Severin Winter is a wrestling prodigy character in John Irving's The 158-Pound Marriage and, in its original Latin form, Severus Snape appears in Harry Potter.