Allen Joseph Ellender (September 24, 1890 – July 27, 1972) was a U.S.
senator from Houma in Terrebonne Parish in south Louisiana, who served from 1937 until 1972 when he died in office in Maryland at the age of eighty-one.
He was a Democrat who was originally allied with Huey Long.
As senator, he compiled a generally conservative record, voting 77 percent of the time with the Conservative Coalition on domestic issues.
A staunch segregationist, he signed the Southern Manifesto in 1956, voted against the Voting Rights Act of 1965, and opposed anti-lynching legislation in 1938.
Unlike many conservatives, he was not a "hawk" in foreign policy and opposed the Vietnam War.