The Pays de Buch is one of several areas that make up the Landes forest on Southwestern France's Atlantic coast. It extends across seventeen towns around Arcachon Bay and the valley of the Eyre River.
La Teste-de-Buch is a coastal commune in the Gironde department in the Nouvelle-Aquitaine region in Southwestern France. Until 13 June 1994, it was officially known simply as La Teste.