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