William L. Thornton | |
|---|---|
 Portrait of Thornton, c. 1900 | |
| Member of the New York State Senate from the 26th district | |
| In office January 1, 1899 – December 31, 1902 | |
| Preceded by | John Grant |
| Succeeded by | Jotham P. Allds |
| Personal details | |
| Born | November 28, 1844 Brooklyn, New York, U.S. |
| Died | December 29, 1915 (aged 71) Monticello, New York, U.S. |
| Political party | Republican |
William L. Thornton (November 28, 1844 – December 29, 1915) was an American lawyer and politician from New York.