The 1940 United States Senate election in Florida was held on November 5, 1940.
Incumbent Senator Charles O. Andrews failed to achieve a majority in the May 7 primary election, but defeated Jerry W. Carter easily in a run-off on May 28. Andrews won the November general election without an opponent.

Background
Incumbent Senator Andrews was first elected in a special 1936 election to complete the unexpired term of Park Trammell.

Democratic primary
Candidates
Charles O. Andrews, incumbent Senator
Jerry W. Carter, member of the Florida Railway Commission and candidate for Governor in 1936 Charles Francis Coe, resident of West Palm Beach Fred P. Cone, Governor of Florida O. B. Hazen, resident of Pahokee Bernarr Macfadden, retired bodybuilder and proponent of physical culture






