Louis Martin may refer to: Lou Martin (Louis Michael Martin, 1949–2012), Northern Irish blues and rock pianist Louis Honore Martin (1895–1920), French World War I flying ace Louis Martin (lay brother) (1823–1894), French layman and father of a Catholic saint Louis Martin (settler) (1820–1864), pioneer settler in Gillespie and Mason Counties, Texas Louis Martin (swimmer) (fl. 1900), swimmer at the 1900 Summer Olympics and water polo player Louis Martin (Swiss politician) (1838–1912), president of the Swiss National Council (1903/1904) Louis Martin (weightlifter) (1936–2015), British Olympic weightlifter Louis Martin (financier) (1866–1957), French financier and civil servant Louis E. Martin (1912–1997), American journalist Louis M. Martin (1863–1940), New York politician and judge Louis St. Martin (1820–1893), Louisiana politician
See also Lewis Martin (disambiguation)