Cretin-Derham Hall High School (CDH) is a private, co-educational Catholic high school located in Saint Paul, Minnesota. Located in the Roman Catholic Archdiocese of Saint Paul and Minneapolis, it is co-sponsored by the Brothers of the Christian Schools and the Sisters of St. Joseph of Carondelet. Cretin High School was named for Joseph Crétin, the first Roman Catholic Bishop of Saint Paul, while Derham Hall High School was named for Hugh Derham, a Minnesotan farmer who donated money to start an all-female Catholic boarding school. They also have a(n) United States Army J.R.O.T.C program.