Magali Rousseau (born 10 March 1988) is a French swimmer, who specialized in butterfly events. She represented her nation France in the 200 m butterfly at the 2008 Summer Olympics, and has been a member of Canet 66 in Canet-en-Roussillon throughout her swimming career under the tutelage of her coach Philippe Lucas. Rousseau is the daughter of three-time Olympic freestyle swimmer Michel Rousseau. Rousseau is a very successful World Games athlete. In 2013, she won four gold medals and one bronze in life saving. In 2017, she won another gold medal in lifesaving.