There were several special elections to the United States House of Representatives in 1945 during the 79th Congress.

79th Congress

! | Dave E. Satterfield Jr. | | Democratic | 1937 | | Incumbent resigned.New member elected March 6, 1945.Democratic hold. | nowrap |

! | James F. O'Connor | | Republican | 1936 | | Incumbent died January 15, 1945.New member elected June 5, 1945.Republican hold. | nowrap |

! | James V. Heidinger | | Republican | 1940 | | Incumbent died in office.New member elected November 6, 1945.Republican hold.

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