Notre Dame Preparatory School is a private, all-girls Roman Catholic, independent school in Towson, Maryland. It is located in the Roman Catholic Archdiocese of Baltimore. Notre Dame Preparatory School is one of Baltimore's oldest Catholic, college preparatory schools for girls. Founded in 1873 by the School Sisters of Notre Dame, a teaching order from Germany, Notre Dame Prep is located in Towson, Maryland, north of Baltimore City.