Aquarium Barcelona (, ) is an aquarium located in Port Vell, a harbor in Barcelona, Catalonia, Spain.
The 35 aquariums at the facility are home to 11,000 animals representing 451 species. The aquarium contains a total of . This includes an ocean tank for sharks, rays and other large fish, which is in diameter, deep, contains of water and has an underwater tunnel. The Aquarium of Barcelona is part of the Aspro Parks.
The aquarium is a member of the Iberian Association of Zoos and Aquaria (AIZA).