Wivan Pettersson (24 January 1904 â 7 November 1976) was a Swedish swimmer. She won a bronze medal in the 4 à100 m freestyle relay at the 1924 Summer Olympics, along with Aina Berg, Gurli Ewerlund and Hjördis Töpel. Individually, she finished fourth in the 200 m breaststroke and failed to reach the 100 m freestyle final. In 1925 she set two Swedish records in the 200 m breaststroke.