John Callahan (Wisconsin politician)

John Callahan
Callahan c. 1940
18th Superintendent of Public Instruction of Wisconsin
In office July 1, 1921 – 1949
Preceded by	Charles P. Cary
Succeeded by	George Earl Watson
Personal details
Born	(1865-12-16)December 16, 1865 Goldens Bridge, New York, U.S.
Died	May 10, 1956(1956-05-10) (aged 90) Madison, Wisconsin, U.S.
Occupation	Educator

John Callahan (December 16, 1865 – May 10, 1956) was an American educator.

Born in Goldens Bridge, New York, he moved with his family to Prescott, Wisconsin. He went to the public schools and did private study while working as a bricklayer. Callahan received his Wisconsin teacher's certificate, in 1894, and taught in rural schools. Callahan served as school principal and also served as superintendent of public schools in Menasha, Wisconsin. Callahan served as Superintendent of Public Instruction of Wisconsin from 1921 to 1949. Callahan died at his home in Madison, Wisconsin.