There were four special elections to the United States House of Representatives in 1919, during the 65th United States Congress and 66th United States Congress.
|-! | Carter Glass| | Democratic| 1902 | | Incumbent resigned December 6, 1918, to become U.S. Secretary of the Treasury.
New member elected February 25, 1919.
Democratic hold.
Winner also elected to the next term; see below.| nowrap |
|-! | Edward E. Robbins| | Republican| 1916| | Incumbent member-elect died January 25, 1919.
New member elected March 4, 1919.
Democratic gain.| nowrap |
|}
|-! | Carter Glass| | 1902 | | Incumbent resigned December 6, 1918, to become U.S. Secretary of the Treasury.
New member elected February 25, 1919.
Democratic hold.
Winner also elected to finish the current term; see above.| nowrap |
|-! | Charles C. Carlin| | 1907 | | Incumbent resigned to manage the presidential campaign of A. Mitchell Palmer.
New member elected April 27, 1919.
Democratic hold.| nowrap |
|-! | Charles A. Sulzer| | 1916| | Incumbent died April 28, 1919, during an election recount.
New member elected June 5, 1919.
Democratic hold.
Winner would later be unseated by the contested election.| nowrap |
|-! | John L. Burnett| | 1898| | Incumbent died May 13, 1919.
New member elected September 30, 1919.
Democratic hold.| nowrap |
|-! | Joseph B. Thompson| | 1912| | Incumbent died September 18, 1919.
New member elected November 8, 1919.
Republican gain.| nowrap |
|-! | colspan=3 | Vacant| | Incumbent James Clifton Wilson (D) did not take his seat.
New member elected April 19, 1919.
Democratic hold.|nowrap |
|-! |Edwin Y. Webb| | 1902| | Incumbent resigned November 10, 1919.
New member elected December 16, 1919.
Democratic hold.|nowrap | |}