Archbishop McNicholas High School is a coed school in the neighborhood of Mt. Washington in Cincinnati, Ohio, USA. The school was opened in 1951 and named in honor of John T. McNicholas, Archbishop of Cincinnati. The school was purchased from the Sisters of Saint Joseph of Medaille by the Roman Catholic Archdiocese of Cincinnati in 1998. The geographic district of Archbishop McNicholas High School is on the eastern side of Hamilton County and extends into Clermont and Brown Counties.