The Sarantaporos (Greek: Σαραντάπορος, Albanian: Sarandapor) is a river in northwestern Greece and southern Albania.

It is a right tributary of the river Vjosa, which flows into the Adriatic Sea.

10 km (6.2 mi) form the border between Greece and Albania.

Its source is between the mountain ranges Gramos and Voio, in the Kastoria regional unit.

Its basin area is 870 km2 (340 sq mi), and its year-average discharge is 6.93 m3 (245 cu ft) per second.