Pagasae

thumb|350px|Map showing ancient Thessaly. Pagasae is shown to the centre right at the head of its gulf. Pagasae or Pagases (), also Pagasa, was a town and polis (city-state) of Magnesia in ancient Thessaly, currently a suburb of Volos. It is situated at the northern extremity of the bay named after it (Παγασητικὸς κόλπος, or ).

Pagasae is celebrated in mythology as the port where Jason built the ship Argo, and from which he sailed upon his adventurous voyage: hence some of the ancients derived its name from the construction of that vessel, (from πήγνυμι), but others from the numerous and abundant springs which were found at this spot. Apollonius of Rhodes describes the setting vividly in the first book of his Argonautica. Pagasae was conquered by Philip II of Macedon after the defeat of Onomarchus; in Diodorus's report the place is spelt Παγαί - Pagaí. On the foundation of Demetrias in 290 or 293 BCE, Pagasae was one of the towns whose inhabitants were transferred to the new city; but after the Roman conquest Pagasae was restored, and again became an important place. In the time of Strabo it was the port of Pherae, which was the principal city in this part of Thessaly. Pagasae was 90 stadia from Pherae, and 20 from Iolcos.