There were five special elections to the United States House of Representatives in 1949, during the 81st United States Congress.
|-! | John J. Delaney| | Democratic| 1918 | | Incumbent died November 18, 1948, during previous congress.
New member elected February 15, 1949.
Democratic hold.| nowrap |
|-! | Sol Bloom| | Democratic| 1923 | | Incumbent died March 7, 1949.
New member elected May 17, 1949.
Liberal gain.| nowrap |
|-! | Robert L. Coffey| | Democratic| 1948| | Incumbent died April 20, 1949.
New member elected September 13, 1949.
Republican gain.| nowrap |
|-! | Richard J. Welch| | Republican| 1926 | | Incumbent died September 10, 1949.
New member elected November 8, 1949.
Democratic gain.| nowrap |
|-! | Andrew L. Somers| | Democratic| 1924| | Incumbent died April 6, 1949.
New member elected November 8, 1949.
Democratic hold.| nowrap |
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