Clarence Alfred Bottolfsen was an American publisher and politician from Idaho, a member of the Idaho Republican Party. He served as the state's 17th and 19th governor, from 1939 to 1941 and again from 1943 to 1945.

The Idaho Republican Party (IDGOP) is the Idaho state affiliate of the United States Republican Party, headquartered in Boise. It is currently the dominant party in the state, controlling both of Idaho's U.S. House seats, both U.S. Senate seats, the governorship, and has supermajorities in both houses of the state legislature.