The 1964 United States Senate election in Hawaii took place on November 3, 1964. Incumbent Republican U.S Senator Hiram Fong was re-elected to a second term in office, defeating Democratic U.S. Representative Thomas Gill. Republican primary Candidates Hiram Fong, incumbent Senator Frank Troy, Democratic candidate for Senate in 1962 Results Democratic primary Candidates Thomas Gill, U.S. Representative Joseph Petrowski Nadao Yoshinaga, State Senator from Maui Results General election Results See also 1964 United States Senate elections References Hawaii 1964 1964 Hawaii elections