The 1968 United States Senate election in Hawaii took place on November 5, 1968. Incumbent Democratic U.S. Senator Daniel Inouye was re-elected to a second term in office, easily defeating Republican nominee Wayne Thiessen.
Democratic primary
Candidates
Daniel Inouye, incumbent Senator
William Lampard
Joseph Petrowski, candidate for Senate in 1962 and U.S. Representative in 1964