What does Selwyn mean?
Selwyn is an uncommon first name for males. Selwyn is an equally unique last name for both adults and children. (2000 U.S. Census)
Below is a charted comparison of the usage of the boy name Selwyn and associated names. The only popular alternative form of Selwyn (#unlisted) ranked in the Top 1000 is Silvio. Adoption of this boy name was at its highest during the years 1920-1929 and has become significantly lower since, with the form Silvio becoming less fashionable. (2014 Birth Statistics)