In ancient Roman religion and myth, Faunus [ˈfau̯nʊs] was the rustic god of the forest, plains and fields; when he made cattle fertile, he was called Inuus. He came to be equated in literature with the Greek god Pan, after which Romans depicted him as a horned god.
Faunus was one of the oldest Roman deities, known as the di indigetes. According to the epic poet Virgil, he was a legendary king of the Latins. His shade was consulted as a goddess of prophecy under the name of Fatuus, with oracles in the sacred grove of Tibur, around the well Albunea, and on the Aventine Hill in ancient Rome itself.