Ian Thorpe Aquatic and Fitness Centre is a fitness centre in Ultimo, New South Wales, a suburb of Sydney, Australia. It has three swimming pools, exercise machines, and other facilities. The centre is co-managed by the City of Sydney and Belgravia Leisure. Named for swimming champion Ian Thorpe, it was one of the last buildings designed by architect Harry Seidler, and is noted for its curved roof design that suggests a breaking ocean wave.