Bokales (Basque) Boucau (French pronunciation: [buko]; Basque: Bokale;[3] Gascon: Lo Bocau) is a commune in the Pyrénées-Atlantiques department and Nouvelle-Aquitaine region of south-western France.

Boucau is within the Bayonne-Biarritz conurbation, and within the Bayonne urban unit.

The city sits 11 metres above sea level, and the Adour river runs through the town.

Boucau station has rail connections to Hendaye, Bayonne and Bordeaux.

One of the rivers that flows into the Adour, the stream of the Esbouc Mill, runs through Boucau.