Castet (French pronunciation: [kastɛt]; Gascon: Castèth) is a commune in the Pyrénées-Atlantiques department in south-western France.

It lies on the river Gave d'Ossau, in the Ossau Valley.

The Lac de Castet is an artificial lake in Castet, created by a dam in the Gave d'Ossau.

This Pyrénées-Atlantiques geographical article is a stub.

You can help Wikipedia by expanding it.