There were four special elections to the United States House of Representatives in 1915:
| District | Incumbent | This race | |||
|---|---|---|---|---|---|
| Member | Party | First elected | Results | Candidates | |
| South Carolina 4 | Joseph T. Johnson | Democratic | 1900 | Incumbent resigned April 19, 1915 to become judge of the U.S. District Court for the Western District of South Carolina. New member elected September 14, 1915. Democratic hold. |
|
| New York 23 | Joseph A. Goulden | Democratic | 1912 | Incumbent died May 3, 1915. New member elected November 2, 1915. Republican gain. |
|
| New York 31 | Edwin A. Merritt | Republican | 1912 (special) | Incumbent died December 4, 1914. New member elected November 2, 1915. Republican hold. |
|
| New York 36 | Sereno E. Payne | Republican | 1889 (special) | Incumbent died December 10, 1914. New member elected November 2, 1915. Republican hold. |
|
| Pennsylvania 24 | Vacant | Rep.-elect William M. Brown (R) died January 31, 1915. New member elected November 3, 1915. Republican hold. |
| ||
