John Cecil Mendenhall (20 January 1904 – 18 October 1976) was an American politician.
He ran a construction business in New Albin from 1927 to 1967, specializing primarily in concrete production and related fields.
Mendenhall was a member of the United Methodist Church and served the local church in a number of administrative and lay leadership positions.
After leaving the state legislature, Mendenhall continued his career in public service on several municipal and county-level organizations.
He died of a heart attack in the backyard of his New Albin home on 18 October 1976.