William Marmaduke Kavanaugh | |
|---|---|
 | |
| United States Senator from Arkansas | |
| In office January 29, 1913 – March 3, 1913 | |
| Preceded by | John N. Heiskell |
| Succeeded by | Joseph T. Robinson |
| Personal details | |
| Born | March 3, 1866 Eutaw, Alabama, U.S. |
| Died | February 21, 1915 (aged 48) Little Rock, Arkansas, U.S. |
| Political party | Democratic |
William Marmaduke Kavanaugh (March 3, 1866 – February 21, 1915) was a Democratic United States Senator from the State of Arkansas.