The 1946 United States Senate election in Tennessee was held on November 5, 1946. Incumbent Democratic Senator Kenneth D. McKellar was re-elected to a sixth term in office. He defeated a primary challenge by Edward W. Carmack Jr. and easily won the general election against Republican William B. Ladd, and Independent candidate John Randolph Neal Jr.
Democratic primary
Candidates
Edward W. Carmack Jr., candidate for Senate in 1942 and son of former Senator Edward W. Carmack
Byron Johnson
Kenneth McKellar, incumbent Senator since 1917 and President pro tempore of the U.S. Senate