The Summit Country Day School is a private, Roman Catholic, PreK–12 co-educational school located in Cincinnati, Ohio. In 2021, enrollment is 1,055 students from ages 18 months through 12th grade. Although located within the Archdiocese of Cincinnati, the school is run by the board of trustees and head of school.

The Archdiocese of Cincinnati is a Latin Church ecclesiastical jurisdiction, or archdiocese, of the Roman Catholic Church that covers many dioceses throughout the State of Ohio in the United States.