Jack R. Gage (January 13, 1899—March 14, 1970) was an American politician who served as the 25th Governor of Wyoming from January 2, 1961 to January 7, 1963.Gage was born in Worland in Washakie County in north central Wyoming. In 1924, he received a Bachelor of Arts degree from the University of Wyoming at Laramie (Albany County). He served in a number of state offices and was elected Wyoming secretary of state in the heavily Democratic year of 1958.