Robert Joseph Twyman (June 18, 1897 – June 28, 1976) was a U.S. Representative from Illinois.

Robert Twyman
From 1947's Pictorial Directory of the 80th Congress
Member of the U.S. House of Representatives from Illinois's 9th district
In office January 3, 1947 – January 3, 1949
Preceded by	Alexander J. Resa
Succeeded by	Sidney R. Yates
Personal details
Born	(1897-06-18)June 18, 1897 Indianapolis, Indiana
Died	June 28, 1976(1976-06-28) (aged 79) West Palm Beach, Florida
Political party	Republican

Born in Indianapolis, Indiana, Twyman attended Georgetown University, Washington, D.C. He was employed in foreign service by the Department of State. During the First World War served as an ensign in the United States Navy. He was employed by a public utility company in Guatemala in 1919. Accepted a commission in the United States Navy in February 1941 and served until September 1945. He was president of the Thomas Hoist Company, a supplier of construction and industrial lifts.

Twyman was elected as a Republican to the Eightieth Congress (January 3, 1947 – January 3, 1949). He sponsored a bill that created a stamp honoring Swedish-Americans. For his efforts he was awarded a medal from the Swedish government in 1949. He was an unsuccessful candidate for reelection in 1948 to the Eighty-first Congress. He resumed business interests until retirement. He died in West Palm Beach, Florida, June 28, 1976. He was interred in Rosehill Cemetery in Chicago.