Coordinates: 45°30′N 04°20′W / 45.500°N 4.333°W
The Bay of Biscay /ˈbɪskeɪ, -ki/ (Spanish: Golfo de Vizcaya, Basque: Bizkaiko Golkoa, French: Golfe de Gascogne) is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Point Penmarc'h to the Spanish border, and the northern coast of Spain west to Cape Ortegal.
The average depth is 1,744 metres (5,722 ft) and the greatest depth is 4,735 metres (15,535 ft).
The Bay of Biscay is named (for English speakers) after Biscay on the northern Spanish coast, probably standing for the western Basque districts (Biscay up to the early 19th century). Its name in other languages is: