Granvin is a municipality in the county of Hordaland, Norway. The population is 964. About half of these, 444 people, live in the village of Granvin, situated at the end of a side arm of the Hardangerfjord.The municipality (originally the parish) is named after the farm Granvin (Norse Grǫnvin), since the first church was built there. The first element is grǫn f which means 'spruce', the last element is vin f 'meadow, pasture'. Granvin is one of few parishes in Vestlandet with forests made of spruce.
The coat-of-arms is from modern times. They were granted on 13 May 1988. The arms show a hardanger-fiddle (Hardingfele), which is a Norwegian folk instrument. Granvin is situated in the Hardanger region, and has an active folk-music tradition.