The United States Senate election in Illinois of 1954 took place on November 2, 1954. Incumbent Democratic United States Senator Paul Douglas was reelected to a second term.
The primary (held on April 13) and general election coincided with those for House and those for state elections.
Turnout in the primaries was 27.07%, with a total of 1,431,554 votes cast. Despite a crowded field for the Republican nomination, the primaries experienced what The New York Times reporter Richard J. H. Johnston referred to as, "one of the lightest primary votes of recent years," in Illinois.
Turnout during the general election was 63.69%, with 3,368,021 votes cast. This election saw fewer votes cast than were cast in either of the two coinciding races for statewide executive offices in Illinois.
Incumbent Paul Douglas was renominated, running unopposed.
Joseph T. Meek won a crowded Republican primary.