Silvanus (; meaning "of the woods" in
Latin) was a
Roman tutelary deity of woods and fields. As protector of forests (
sylvestris deus), he especially presided over plantations and delighted in trees growing wild. He is also described as a god watching over the fields and husbandmen, protecting in particular the boundaries of fields. The similarly named
Etruscan deity
Selvans may be a borrowing of Silvanus, or not even related in origin.