William Lewis (September 22, 1868 – August 8, 1959) was a U.S. Representative from Kentucky.

Born in Cutshin, Kentucky, Lewis was raised on a farm and attended the common schools of Leslie and Perry Counties and the Laurel County Seminary, London, Kentucky.

Lewis was elected as a Republican to the Eightieth Congress to fill the vacancy caused by the death of John Marshall Robsion and served from April 24, 1948, to January 3, 1949.

Lewis is the oldest person to win his first election to Congress, and was 79 years old at the time he assumed office.

This article incorporates public domain material from the Biographical Directory of the United States Congress