Britta Kamrau-Corestein (born 6 April 1979 in Rostock) is a German long-distance swimmer. She is a former European champion at the 5 km, 10 km and 25 km open water distances and former world champion at the 25 km. In March 2007 she was the center of some controversy after she claimed that Australian swimmer Kate Brookes-Peterson pulled her from behind in the final 100 meters of the 5 km open water race at the 2007 World Aquatics Championships denying her a bronze medal.