The communauté d'agglomération du Pays Basque , is the agglomeration community (federation of communes), centred on the cities of Bayonne and Biarritz. Also referred to as the French Basque Country, or Northern Basque Country (Basque: Iparralde (lit. 'the Northern Region'), French: Pays basque, Spanish: País Vasco francés), it is located in the Pyrénées-Atlantiques department, in the Nouvelle-Aquitaine region, southwestern France.
It was created in January 2017 by the merger of the former communauté de l'agglomération Côte Basque-Adour, communauté de l'agglomération Sud Pays Basque and eight communautés de communes. Its area is 2968 km2. Its population was 312,278 in 2018, including 51,411 in Bayonne and 25,532 in Biarritz.