The Autopista AP-8 is a toll autopista in the north of Spain, crossing the Basque Country from east to west. It is known as the, ) and connects the French border with Bilbao via San Sebastián, Zarautz, Eibar and Durango. At Bilbao the AP-8 continues as the toll-free Autovía A-8, which runs along the Spanish northern coast to Gijón and eventually the region of Galicia. The first section of the AP-8 opened in 1971 between Amorebieta and Basauri. It was finished in 1976, with the opening of the international connection to the A63 autoroute in France. Additionally, the new southern ring road of Bilbao, designated as AP-8 and commonly known as the Supersur, opened in 2011.

List of junctions