St. Bernard Preparatory School is a private, Roman Catholic day school and boarding school in Cullman, Alabama. It is run independently of the Roman Catholic Diocese of Birmingham in Alabama by the Benedictine monks of St. Bernard Abbey, located on the same campus.

Cullman is the largest city and county seat of Cullman County, Alabama, United States. It is located along Interstate 65, about 50 miles (80 km) north of Birmingham and about 55 miles (89 km) south of Huntsville. As of the 2020 census it had a population of 18,213, with an estimated population of 19,251 in 2022.