Robert Borden Reams (January 27, 1904 – March 26, 1994) was an American diplomat. He was the first United States Ambassador to Upper Volta (now Burkina Faso), Dahomey (now Benin), Niger, and Ivory Coast (now Côte d'Ivoire) simultaneously. On July 31, 1960, an envoy, Donald R. Norland, had presented his credentials as Chargé d'Affaires ad interim on the previous day of Reams' appointment.
Reams was born in Luthersburg, Clearfield County, Pennsylvania, on January 27, 1904. He was the son of John Homer Reams and Lulu Ann (Borden) Reams. He married his wife Charlotte Johns on April 6, 1924. He later joined the U.S Foreign and saw overseas post as U.S. Vice Consul in Le Havre, France from 1929 to 1931, South Africa in Johannesburg from 1931 to 33 and again from 1935 to 1936; From 1933 to 1935 Reams was U.S. Vice Consul in Port Elizabeth, South Africa. He later became U.S. Consul in Copenhagen, Denmark in 1937 until 1940.
On October 14, 1960, Reams was nominated to be the U.S. Ambassador to Dahomey, Niger, Ivory Coast, and Upper Volta by President Dwight D. Eisenhower. He was a resident at Abidjan during his ambassadorship. By 1962, Reams had been superseded by respective ambassadors to each country he represented.
Reams died in 1994 of an aortic aneurysm at 90 years of age.