Mathew Harris Ellsworth (September 17, 1899 – February 7, 1986) was an American newspaperman and politician who served six terms as a Republican U.S. congressman from Oregon from 1943 to 1957.

Born in Hoquiam, Washington, Ellsworth moved together with his parents to Eugene, Oregon, and later to nearby Wendling, where he attended public schools.

Ellsworth helped to bring a Veteran's Administration hospital to Roseburg, which provided construction jobs to the area hard-hit by the Great Depression.

After losing the election, Ellsworth was appointed by President Eisenhower to a two-year term as chairman of the United States Civil Service Commission, serving from April 18, 1957 until resigning on February 28, 1959.

[1] Ellsworth left politics and resumed his newspaper business and became a real estate broker.