Biscay (Congress of Deputies constituency)

Biscay
Congress of Deputies Electoral constituency
Location of Biscay within Spain
Province	Biscay
Autonomous community	Basque Country
Population	1,160,133 (2024)[1]
Electorate	942,983 (2023)
Major settlements	Bilbao, Barakaldo, Getxo
Current constituency
Created	1977
Seats	10 (1977–1993) 9 (1993–2008) 8 (2008–present)
Member(s)	PNV (2)   PSOE (2)   EH Bildu (2)   PP (1)   Sumar (1)

Biscay (Basque: Bizkaia, Spanish: Vizcaya) is one of the 52 constituencies (Spanish: circunscripciones) represented in the Congress of Deputies, the lower chamber of the Spanish parliament, the Cortes Generales. The constituency currently elects eight deputies. Its boundaries correspond to those of the Spanish province of Biscay. The electoral system uses the D'Hondt method and a closed-list proportional representation, with a minimum threshold of three percent.