The Tavignano (; ) is a river on the island of Corsica, France.
The Tavignano is long. In antiquity the river was known as the Rhotanus or ῬÃÂÃÂñýÿÃÂ. It crosses the communes of Aléria, Altiani, Antisanti, Casamaccioli, Corte, Erbajolo, Giuncaggio, Piedicorte-di-Gaggio, Poggio-di-Venaco, Riventosa, Santa-Lucia-di-Mercurio, Santo-Pietro-di-Venaco and Venaco.
The Tavignano rises below the Capu a u Tozzu and flows to the east. It runs through Lac de Nino near its source. Part of the river's upper section flows through the Réserve biologique intégrale du Tavignano. It then flows through the town of Corte. From Corte it runs southeast to the Tyrrhenian Sea near Aléria, followed by the T50 road. it enters the sea between the ÃÂtang de Diane and the ÃÂtang del Sale. Its entire course is in the Haute-Corse département.
Measurements of the river flow were taken at the Antisanti [Pont du Faïo] station from 1996 to 2021. The watershed above this station covers . Annual precipitation was calculated as . The average flow of water throughout the year was .
The following streams (ruisseaux) are tributaries of the Tavignano, ordered by length: