| State: | Indiana |
| District Number: | 12 |
| Obsolete: | yes |
| Created: | 1875 |
| Eliminated: | 1940 |
| Years: | 1875–1943 |
| Population Year: | 1930 |
Indiana's 12th congressional district was a congressional district for the United States House of Representatives in Indiana. It was eliminated as a result of the 1940 census. It was last represented by Louis Ludlow who was redistricted into the 11th district.
| Member | Party | Years | Cong ress | Electoral history | |||
|---|---|---|---|---|---|---|---|
| District created March 4, 1875 | |||||||
| align=left | Andrew H. Hamilton | Democratic | nowrap | March 4, 1875 – March 3, 1879 | Elected in 1874. Re-elected in 1876. Retired. | ||
| align=left | Walpole G. Colerick | Democratic | nowrap | March 4, 1879 – March 3, 1883 | Elected in 1878. Re-elected in 1880. Retired. | ||
| align=left | Robert Lowry | Democratic | nowrap | March 4, 1883 – March 3, 1887 | Elected in 1882. Re-elected in 1884. Lost re-election. | ||
| align=left | James B. White | Republican | nowrap | March 4, 1887 – March 3, 1889 | Elected in 1886. Lost re-election. | ||
| align=left | Charles A. O. McClellan | Democratic | nowrap | March 4, 1889 – March 3, 1893 | Elected in 1888. Re-elected in 1890. Retired. | ||
| align=left | William F. McNagny | Democratic | nowrap | March 4, 1893 – March 3, 1895 | Elected in 1892. Lost re-election. | ||
| align=left | Jacob D. Leighty | Republican | nowrap | March 4, 1895 – March 3, 1897 | Elected in 1894. Lost re-election. | ||
| align=left | James M. Robinson | Democratic | nowrap | March 4, 1897 – March 3, 1905 | Elected in 1896. Re-elected in 1898. Re-elected in 1900. Re-elected in 1902. Lost re-election. | ||
| align=left | Newton W. Gilbert | Republican | nowrap | March 4, 1905 – November 6, 1906 | Elected in 1904. Resigned to become Judge of First Instance in Manila, Philippines. | ||
| align=left | Clarence C. Gilhams | Republican | nowrap | November 6, 1906 – March 3, 1909 | Elected to finish Gilbert's term. Re-elected in 1906. Lost re-election. | ||
| align=left | Cyrus Cline | Democratic | nowrap | March 4, 1909 – March 3, 1917 | Elected in 1908. Re-elected in 1910. Re-elected in 1912. Re-elected in 1914. Lost re-election. | ||
| align=left | Louis W. Fairfield | Republican | nowrap | March 4, 1917 – March 3, 1925 | Elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Lost renomination. | ||
| align=left | David Hogg | Republican | nowrap | March 4, 1925 – March 3, 1933 | Elected in 1924. Re-elected in 1926. Re-elected in 1928. Re-elected in 1930. Redistricted to the and lost re-election. | ||
| align=left | Louis Ludlow | Democratic | nowrap | March 4, 1933 – January 3, 1943 | Redistricted from the and re-elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Re-elected in 1940. Redistricted to the . | ||
| District eliminated January 3, 1943 | |||||||