Gomphi was a town and polis (city-state) of Histiaeotis in ancient Thessaly, situated upon a tributary of the Peneius, and near the frontiers of Athamania and Dolopia. Its position made it a place of historical importance, since it guarded two of the chief passes into the Thessalian plains: "that of Musáki, distant two miles [three km], which was the exit from Dolopia, and the pass of Portes, at a distance of four miles [six km], which led into Athamania, and through that province to Ambracia."