Muṣaṣir (Armenian: Մուծածիր, Assyrian ^KURMu-ṣa-ṣir and variants, including Mutsatsir, Akkadian for Exit of the Serpent/Snake ), in Urartian Ardini (likely from Armenian Artin) was an ancient city of Urartu, attested in Assyrian sources of the 9th and 8th centuries BC.