Martha Norelius
 Martha Maria Norelius (January 22 1909 – September 25 1955) was a Swedish-born American swimmer who won three gold medals at the 1924 and 1928 Olympics in the 400 m freestyle in 1924 and in the 400 m and 4×100 m freestyle events in 1928. Between 1925 and 1929 she won 11 individual Amateur Athletic Union (AAU) titles and set at least 19 world and 30 American records.