Samuel Ellis Cook (September 30, 1860 – February 22, 1946) was a U.S. Representative from Indiana.
Born on a farm in Huntington County, Indiana, Cook attended the common schools in Whitley County and the normal schools at Columbia City, Indiana, and Ada, Ohio. He taught school and engaged in agricultural pursuits. He studied law. He was graduated from the law department of Valparaiso University, Indiana, in 1888. He was admitted to the bar the same year and commenced practice in Huntington, Indiana. He served as prosecuting attorney for Huntington County 1892-1894. He served as delegate to the Democratic National Convention in 1896. Editorial writer for the Huntington News-Democrat 1896-1900. He served as judge of the Huntington circuit court for the fifty-sixth judicial district 1906-1918.
Cook was elected as a Democrat to the Sixty-eighth Congress (March 4, 1923-March 3, 1925). He was an unsuccessful candidate for reelection in 1924 to the Sixty-ninth Congress. He resumed the practice of law in Huntington, Indiana, where he died February 22, 1946. He was interred in Mount Hope Cemetery.