The Parliament of Cantabria is the unicameral legislature of the autonomous community of Cantabria. It consists of 35 members called "deputies" which are freely elected by the citizens of the region. The Parliament convenes at the Saint Raphael Hospital, an 18th-century building in the city of Santander rehabilitated in the 1980s to house the Regional Assembly.

Cantabria is an autonomous community and province in northern Spain with Santander as its capital city. It is called a comunidad histórica, a historic community, in its current Statute of Autonomy. It is bordered on the east by the Basque autonomous community, on the south by Castile and León, on the west by the Principality of Asturias, and on the north by the Cantabrian Sea, which forms part of the Bay of Biscay.