1966 United States Senate election in Louisiana

1966 Democratic Senate primary election in Louisiana

← 1960 August 13, 1966 1972 →
 
Nominee Allen Ellender J. D. DeBlieux Troyce Guice
Party Democratic Democratic Democratic
Popular vote 494,619 94,154 78,137
Percentage 74.17% 14.12% 11.72%

Parish results
Ellender:      50–60%      60–70%      70–80%      80–90%      >90%
DeBlieux:      50–60%

U.S. senator before election

Allen Ellender
Democratic

Elected U.S. Senator

Allen Ellender
Democratic

The 1966 United States Senate election in Louisiana was held on November 8, 1966. Incumbent Democratic Senator Allen Ellender was elected to a sixth term in office.

On August 13, Ellender won the Democratic primary with 74.17% of the vote. At this time, Louisiana was a one-party state and the Democratic nomination was tantamount to victory. Ellender won the November general election without an opponent.