Raymond Henry Hamann (August 19, 1911 – May 7, 2005) was an American professional basketball player and college coach. By playing in the National Basketball League for the Oshkosh All-Stars during the 1937–38 and 1938–39 seasons, Hamann became the first South Dakotan to play organized professional basketball. He also competed for the All-Stars when they were a barnstorming independent team. Hamann died on May 7, 2005 in his hometown of Yankton, South Dakota.