The municipality (originally the parish) is named after the old "Grane" farm ("Grane" 1661), since the first church was built there in 1860. The name "Grane" is pronounced with a long a and short n, which is not palatalized. It is seemingly a simple and plain name, but many questions arise regarding both valid meanings for the word and the spoken forms it takes. The spoken form is most peculiar. It is distinct from other genuine old farm names in the area in that it is uninflected, with no definite form and consequently no distinct case (neither dative nor genitive). It is said short and crisp, regardless of what speech context it is found in.