What is the largest bank in Spain?

The largest bank in Spain is Banco Santander, S.A. It is the largest bank in the Eurozone by market capitalization and the sixteenth-largest bank in the world. Banco Santander was founded in 1857 and is headquartered in Madrid, Spain. The bank has a presence in over 30 countries and has a market capitalization of over €60 billion. Banco Santander is a global provider of financial services, including retail banking, commercial banking, investment banking, and asset management.