Aquatopia is a popular educational attraction in central Antwerp, Belgium. Aquatopia features a set of aquariums, along with recreations of other marine habitats, including swamps, rain forests, river deltas, and coral reefs. Aquatopia also includes a number of special exhibits covering sharks, nautilus, and mysteries of the deep. The multi-story attraction is located on Koningin Astridplein, adjacent to Antwerpen-Centraal railway station, and one block from the city's primary bus terminals at Franklin Rooseveltplatz. It has 1,000,000 litres (220,000 imp gal; 260,000 US gal) of water.

Although the entrance to Antwerp's zoological gardens is also located on Astridplein, the zoo is not formally affiliated with Aquatopia.