Edwin Sidney Broussard (December 4, 1874 - November 19, 1934) was a United States Senator from Louisiana. Born near Loureauville, he attended the public schools and was graduated from the Louisiana State University and Agricultural and Mechanical College at Baton Rouge in 1896. He taught in the public schools of Iberia and St. Martin parishes from 1896 to 1898.
At the outbreak of the Spanish-American War, Broussard volunteered for service and served as a captain in Cuba, 1898 - 1899; he accompanied the Taft Commission to the Philippine Islands in 1899 and served as an assistant secretary. He returned to the United States in 1900, was graduated from the law department of Tulane University in 1901, and was admitted to the bar the same year, commencing practice in New Iberia.
Broussard was prosecuting attorney for the nineteenth district of Louisiana from 1903 to 1908 and was an unsuccessful candidate for lieutenant governor in 1916. He was elected as a Democrat to the U.S. Senate in 1920, was reelected in 1926 and served from March 4, 1921, to March 3, 1933. He was an unsuccessful candidate for renomination in 1932 and resumed the practice of law in New Iberia, where he died in 1934; interment was in St. Peters Cemetery.
Robert Foligny Broussard, Edwin's brother, also practiced law in New Iberia and was elected to the U.S. House of Representatives and Senate.