Robert R. Hitt, American lawyer and politician, 13th United States Assistant Secretary of State (d. 1906)

Robert Roberts Hitt (January 16, 1834 – September 20, 1906) was an American diplomat and Republican politician from Illinois. He served briefly as Assistant Secretary of State in the short-lived administration of James A. Garfield but resigned alongside Secretary James G. Blaine after Garfield's assassination in 1881. He returned to Washington to represent Northwestern Illinois in the United States House of Representatives from 1882 to his death. After 1885, he was the senior Republican on the House Committee on Foreign Affairs, which he chaired from 1889 to 1891 and 1895 until his 1906.