There were several special elections to the United States House of Representatives in 1923, spanning the 67th United States Congress and 68th United States Congress.
|- ! | John I. Nolan | | Republican | 1912 | | Incumbent died November 18, 1922.<br/>New member elected January 23, 1923.<br/>Republican hold.<br/>Winner also elected to the next term; see below. | nowrap |
|- ! | Samuel Marx | | Democratic | 1922 | | Member-elect died November 30, 1922.<br/>New member elected January 30, 1923.<br/>Democratic hold. | nowrap |
|- ! | John I. Nolan | | Republican | 1912 | | Incumbent member-elect died during previous congress.<br/>New member elected January 23, 1923.<br/>Republican hold.<br/>Winner also elected to finish the current term; see above. | nowrap |
|- ! | colspan=3 | Vacant | | Rep. James R. Mann (R) died during previous congress.<br/>New member elected April 3, 1923.<br/>Republican gain. | nowrap |
|- ! | colspan=3 | Vacant | | Rep. Henry Z. Osborne (R) died during previous congress.<br/>New member elected May 1, 1923.<br/>Republican gain. | nowrap |
|- ! | Horace M. Towner | | Republican | 1910 | | Incumbent resigned April 1, 1923 to become Governor of Puerto Rico.<br/>New member elected June 19, 1923.<br/>Republican hold. | nowrap |
|- ! | John M. C. Smith | | Republican | 1910<br/>1920 <br/>1921 | | Incumbent died March 30, 1923.<br/>New member elected June 19, 1923.<br/>Republican hold. | nowrap |
|- ! | John R. Tyson | | Democratic | 1920 | | Incumbent died March 27, 1923.<br/>New member elected August 14, 1923.<br/>Democratic hold. | nowrap |
|- ! | J. Stanley Webster | | Republican | 1918 | | Incumbent resigned May 8, 1923 to become a U.S. District Court Judge.<br/>New member elected September 25, 1923.<br/>Democratic gain. | nowrap |
|- ! | Lewis E. Sawyer | | Democratic | 1922 | | Incumbent died May 5, 1923.<br/>New member elected October 6, 1923.<br/>Democratic hold. | nowrap |
|- ! | John W. Rainey | | Democratic | 1918 | | Incumbent died May 4, 1923.<br/>New member elected November 6, 1923.<br/>Democratic hold. | nowrap |
|- ! | Daniel J. Riordan | | Democratic | 1898<br/>1900 <br/>1906 | | Incumbent died April 28, 1923.<br/>New member elected November 6, 1923.<br/>Democratic hold. | nowrap |
|- ! | colspan=3 | Vacant | | Rep. W. Bourke Cockran died during previous congress.<br/>New member elected November 6, 1923.<br/>Democratic hold. | nowrap |
|- ! | James V. Ganly | | Democratic | 1922 | | Incumbent died September 7, 1923.<br/>New member elected November 6, 1923.<br/>Republican gain. | nowrap |
|- ! | Luther W. Mott | | Republican | 1912 | | Incumbent died September 7, 1923.<br/>New member elected November 6, 1923.<br/>Democratic hold. | nowrap |
|- ! | Claude Kitchin | | Democratic | 1900 | | Incumbent died May 31, 1923.<br/>New member elected November 6, 1923.<br/>Democratic hold. | nowrap |
|- ! | Porter H. Dale | | Republican | 1914 | | Incumbent resigned August 11, 1923 to run for U.S. Senator.<br/>New member elected November 6, 1923.<br/>Republican hold. | nowrap |
|- ! | Benjamin G. Humphreys II | | Democratic | 1902 | | Incumbent died October 16, 1923.<br/>New member elected November 27, 1923.<br/>Democratic hold. | nowrap |
|- ! | J. Campbell Cantrill | | Democratic | 1908 | | Incumbent died September 2, 1923.<br/>New member elected November 30, 1923.<br/>Democratic hold. | nowrap |