Mount Erciyes (Turkish: Erciyes Dağı; derived from the ancient Greek name Ἀργαῖος Argaeos; Latinized as Argaeus by the ancient Romans) is a massive stratovolcano located 25 km to the south of Kayseri in Turkey.

Erciyes is the highest mountain in central Anatolia, with its summit reaching 3,916 metres (12,848 ft). It is considered to be the highest peak of the Anti-Taurus mountain range, a northeastern extension of the Taurus Mountains to the south, and belongs to the Alpide belt in Eurasia.

The volcano is heavily eroded, but may have erupted as recently as 253 BC, as may be depicted on Roman era coins.

Strabo called the mountain Argaeus (Ἀργαῖος); he wrote that the summit was never free from snow and that those few who ascended it reported seeing both the Black Sea to the north and the Mediterranean Sea to the south in days with a clear sky.

There are winter sports facilities on the mountain, which are usually accessed from nearby Kayseri.