Warren Louis Boudreaux (January 25, 1918 – October 6, 1997) was an American prelate of the Roman Catholic Church. He served as Bishop of Beaumont (1971–1977) and Bishop of Houma-Thibodaux (1977–1992).
Warren Boudreaux was born in Berwick, Louisiana, to Alphonse Louis and Loretta Marie (née Senac) Boudreaux. After graduating from Berwick Junior High School, he studied at St. Joseph's Seminary near Covington and at Notre Dame Seminary in New Orleans. He also attended the Seminary of Saint-Sulpice in Paris, France. Returning to Louisiana, he was ordained to the priesthood on May 30, 1942. He then served as a curate at St. Michael's Church in Crowley until 1943, when he was sent to study at the Catholic University of America in Washington, D.C., later earning a doctorate in canon law in 1946.
Boudreaux became vice-chancellor of the Diocese of Lafayette and secretary to Bishop Jules Jeanmard in 1946, and was named a Papal Chamberlain in 1950. In addition to these duties, he served as Defender of the Bond (1947–1950) and officialis (1950–1954) on the diocesan court. He served as pastor of St. Peter's Church at New Iberia from 1954 to 1971, and was made vicar general of the diocese in 1956. He was raised to the rank of Domestic Prelate in 1958.