Robert Foligny Broussard (August 17, 1864 - April 12, 1918) was a United States Representative and Senator from Louisiana. Born on the Mary Louise plantation, near New Iberia, he attended public and private schools and attended Georgetown University from 1879 to 1882. He was night inspector of customs in New Orleans from 1885 to 1888, when he was appointed assistant weigher and statistician, holding that position in 1888 - 1889. He studied law at Tulane University, graduating in 1889; he was admitted to the bar the same year and commenced practice in New Iberia. He was elected prosecuting attorney of the nineteenth judicial district, holding that office from 1892 to 1897.
Broussard was elected as a Democrat to the Fifty-fifth and to the eight succeeding Congresses (March 4, 1897-March 3, 1915). While in the House of Representative, he was chairman of the Committee on Expenditures in the Department of Justice (Sixty-third Congress); he did not seek renomination in 1914, having become a candidate for Senator. He was elected in 1914 to the Senate and served from March 4, 1915, until his death in New Iberia in 1918; while in the Senate he was chairman of the Committee on National Banks (Sixty-fourth and Sixty-fifth Congresses). Interment was in the Catholic Cemetery.
Edwin Sidney Broussard, Robert's brother, also practiced law in New Iberia and was elected to the U.S. Senate.