Richard Henry Clarke (February 9, 1843 – September 26, 1906) was a U.S. Representative from Alabama.
Born in Dayton, Alabama, Clarke attended Green Springs Academy and was graduated from the University of Alabama at Tuscaloosa in July 1861. During the Civil War served in the Confederate States Army as a lieutenant in the First Battalion of Alabama Artillery. He studied law. He was admitted to the bar in 1867 and commenced practice in Dayton, Alabama. He moved to Demopolis, Alabama, and continued the practice of law. State solicitor for Marengo County 1872-1876. He served as prosecuting attorney of the seventh judicial circuit in 1876 and 1877. He resumed the practice of law in Mobile, Alabama.
Clarke was elected as a Democrat to the Fifty-first and to the three succeeding Congresses (March 4, 1889-March 3, 1897). He was not a candidate for renomination, but was an unsuccessful candidate for Governor in 1896. He resumed the practice of law. He served as member of the State house of representatives in 1900 and 1901. He died in St. Louis, Missouri, September 26, 1906. He was interred in Magnolia Cemetery, Mobile, Alabama.