1944 United States Senate election in Pennsylvania

The 1944 United States Senate election in Pennsylvania was held on November 7, 1944. Incumbent Republican U.S. Senator James J. Davis sought re-election, but was defeated by Democratic nominee Francis J. Myers.

This is the first time since 1861 that Democrats held this Senate seat. Other than Arlen Specter's brief tenure as a Democrat during the 111th United States Congress after a party switch, the 1944 election marked the only time between 1856 and 2023 with the election of John Fetterman that Pennsylvania sent two members of the Democratic Party to the United States Senate. During the 79th United States Congress, Myers served alongside Democratic Senator Joseph F. Guffey, who would lose re-election in 1946.