Louis-Joseph-Lucien Cardin, PC QC (March 1, 1919 – June 13, 1988) was a Canadian lawyer, judge, and politician. Born in Providence, Rhode Island, the son of Octave Cardin and Eldora Pagé, he studied at Loyola College and at the Université de Montréal. During World War II, he served in the Royal Canadian Navy and was discharged with the rank of Lieutenant Commander. He was called to the Quebec Bar in 1950. In a 1952 by-election, he was elected to the House of Commons of Canada as a Liberal in the Quebec riding of Richelieu—Verchères. He was re-elected in 1953, 1957, 1958, 1962, 1963, and 1965.