| Birthname: | William Craig Cooper |
| William C. Cooper | |
| Image Name: | William C. Cooper 005.png |
| State: | Ohio |
| District: | 9th |
| Party: | Republican |
| Term Start: | March 4, 1885 |
| Term End: | March 3, 1891 |
| Preceded: | James S. Robinson |
| Succeeded: | Joseph H. Outhwaite |
| State House2: | Ohio |
| District2: | Knox County |
| Term Start2: | January 1, 1872 |
| Term End2: | January 4, 1874 |
| Preceded2: | John D. Thompson |
| Succeeded2: | Allen J. Beach |
| Birth Date: | 18 December 1832 |
| Birth Place: | Mount Vernon, Ohio, US |
| Death Place: | Mount Vernon, Ohio, US |
| Restingplace: | Mound View Cemetery |
William Craig Cooper (December 18, 1832 – August 29, 1902) was an American lawyer, Civil War veteran, and politician who served three terms as a U.S. Representative from Ohio from 1885 to 1891.
Born in Mount Vernon, Ohio, Cooper attended the public schools and Mount Vernon Academy.He studied law.He was admitted to the bar in 1852 and commenced practice in Mount Vernon, Ohio.
He served as prosecuting attorney of Knox County 1859-1863.He served as mayor of Mount Vernon 1862-1864.
During the American Civil War, Cooper was colonel of the 142nd Ohio Infantry, a 100 days regiment.
He served as a member of the State house of representatives 1872-1874.He served as judge advocate general of Ohio 1879-1884.He served as member and president of the board of education of Mount Vernon.
Cooper was elected as a Republican to the Forty-ninth, Fiftieth, and Fifty-first Congresses (March 4, 1885 – March 3, 1891).He was not a candidate for renomination in 1890.
He resumed the practice of law in Mount Vernon, Ohio, where he died on August 29, 1902.He was interred in Mound View Cemetery.