1966 United States Senate election in Kentucky

The 1966 United States Senate election in Kentucky took place on November 8, 1966. Incumbent Republican Senator John Sherman Cooper was elected to a second consecutive term in office, defeating Democrat John Y. Brown Sr. in a rematch of the 1946 special election.

Candidates

 * John Sherman Cooper, incumbent Senator since 1957
 * Thurman Jerome Hamlin, perennial candidate from London
 * Sam M. Ward

Candidates

 * John Y. Brown Sr., former U.S. Representative at-large and nominee for Senate in 1946
 * Jesse N.R. Cecil
 * James Ward Lentz
 * Gaines P. Wilson