Edwin Keith Thomson (February 8, 1919 – December 9, 1960), usually known as Keith Thomson, was a United States representative from Wyoming. A highly decorated World War II veteran, Thomson served three terms in Wyoming's only U.S. House seat. On November 8, 1960, he was elected to the U.S. Senate, but died a month later of a heart attack before taking office.
Thomson was called to active duty on March 24, 1941 and commanded the Second Battalion, 362nd Infantry Regiment, 91st Division. He was released from active duty as a lieutenant colonel on January 24, 1946. He had been admitted to the bar in 1941 and commenced the practice of law in Cheyenne in February 1946; he was a delegate to the 1952 Republican National Convention in Chicago and was a member of the Wyoming House of Representatives from 1952 to 1954.
Following Thomson's death, his wife Thyra Thomson was elected in 1962 as Wyoming Secretary of State. She was re-elected to five more terms, and served in that office for twenty-four years, until 1987.[6][7][8]