The Reci River (also known as Reciu River, as Retz in Pollonian and Recs in Franquese) is a river in Antharia. It is 272 km (169 mi) long, and its basin area is 14,050 km² (5,425 sq mi). It is the longest river flowing exclusively through Antharia. Its source is in the Hășmaș Mountains of the eastern Turcov Mountains, near Vișineasa, rising close to the headwaters of the Svănica River. It flows through the Antharian provinces Vallaquia, Pollonia and Cadrilather.