The British School of Barcelona (BSB) is a private coeducational bilingual international school located in the Barcelona metropolitan area, Catalonia, Spain. It is an all-through British International school for students aged 2–18 with four campuses in Barcelona, Castelldefels and Sitges. The British School of Barcelona has been a Cognita school since 2007. The school is a founder member of the National Association of British Schools in Spain (NABSS).