Selge (in Greek Σελγη) was an important city in Pisidia, on the southern slope of Mount Taurus, modern Antalya Province, Turkey, at the part where the river Eurymedon River (Turkish: Köprüçay)forces its way through the mountains towards the south.

The town was believed to be a Greek colony, for Strabo states that it was founded by Spartans, but adds the somewhat unintelligible remark that previously it had been founded by Calchas. The acropolis of Selge bore the name of Kesbedion. The district in which the town was situated was extremely fertile, producing abundance of oil and wine, but the town itself was difficult of access, being surrounded by precipices and beds of torrents flowing towards the Eurymedon and Cestrus (today Aksu), and requiring bridges to make them passable. In consequence of its excellent laws and political constitution, Selge rose to the rank of the most powerful and populous city of Pisidia, and at one time was able to send an army of 20,000 men into the field. Owing to these circumstances, and the valour of its inhabitants, for which they were regarded as worthy kinsmen of the Spartans, the Selgians were never subject to any foreign power, but remained in the enjoyment of their own freedom and independence. When Alexander the Great passed through Pisidia (333 BC), Selge sent an embassy to him and gained his favour and friendship. At that time they were at war with Termessos.