| 1904 presidential election | |
  Nominees Roosevelt and Fairbanks | |
| Convention | |
|---|---|
| Date(s) | June 21–23, 1904 |
| City | Chicago, Illinois |
| Venue | Chicago Coliseum |
| Chair | Joseph G. Cannon |
| Candidates | |
| Presidential nominee | Theodore Roosevelt of New York |
| Vice-presidential nominee | Charles W. Fairbanks of Indiana |
| Other candidates | Mark Hanna |
| Voting | |
| Total delegates | 994 |
| Votes needed for nomination | 498 |
| Results (president) | Theodore Roosevelt (NY): 994 (100%) |
| Ballots | 1 |
The 1904 Republican National Convention was held in the Chicago Coliseum, Chicago, Cook County, Illinois, on June 21 to June 23, 1904.
The popular President Theodore Roosevelt had easily ensured himself of the nomination; a threat had come from the Old Guard favourite Ohio Senator Mark Hanna, the loyal kingmaker in Republican politics, but he died early in 1904, which ended any opposition to Roosevelt within the Republican Party.
There were also very informal talks with future president William Howard Taft about trying for the nomination, but Taft refused these motions as evidenced by a letter to Henry Hoyt, the Solicitor General, in 1903.
Roosevelt was nominated by 994 votes to none, while the only other serious opponent to Roosevelt, Indiana Senator Charles W. Fairbanks, was nominated for vice president by acclaimation.