Stephen Bennett Packard Sr. (April 25, 1839 – January 31, 1922) was a Republican politician in Reconstruction-era Louisiana. He ran for governor in 1876 against Democratic opponent Francis T. Nicholls, and at the end of the election both candidates claimed victory, leaving the matter to be resolved by President Rutherford B. Hayes. He was the last Republican to serve as Governor of Louisiana until Dave Treen took office in 1980.