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 the same day 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 August 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 Bryan Thompson| | 1912| | Incumbent died September 18, 1919.
New member elected November 8, 1919.
Republican gain.| nowrap |
|-! | colspan=3 | Vacant| | Incumbent James Clifton Wilson 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 | |}