The name Marin is a girl's name of Latin origin. Marin and is often added to lists like Literary Names for Girls and discussed in our forums with posts like "A brother or sister for little Jack or Olivia".
From the experts:
Marin is a lovely county north of San Francisco, and a lovely baby name on the rise, one which sounds more refreshing than the more familiar Marina.
As a place-name, Marin is pronounced with the accent on the second syllable, Ma-RIN, sort of like Marie, though when used as a name, many would say MAR-in, to rhyme with Karen.
Marin is unisex in several European countries (in Croatia it's currently Number 29 for boys); Maren is an alternate, Scandinavian, spelling. In France a very fashionable alternative for girls is Marine.