Ma Braun

Ma Braun with Nel van Vliet at the 1947 European Aquatics Championships.

Maria Johanna "Ma" Braun (Delfshaven, 28 December 1881 – Rotterdam, 9 October 1956) was a Dutch swimming coach. She led the Dutch women's swimming team at the 1928–1952 Olympics and at the European championships in between, with her trainees winning medals at each of these competitions. Owing to her efforts, later supported by another prominent Dutch coach Jan Stender, the Netherlands was one of the leading women's swimming nations of the 1930s–1960s. Throughout her career Braun tried new strokes and training methods, and traveled throughout Europe to learn from competitors. In 1967 she was inducted into the International Swimming Hall of Fame.