Regina High School (RHS) is a Roman Catholic, private, four year college preparatory high school for girls in Warren, Michigan in Metro Detroit. From the school's founding in 1956 through June, 2007, Regina was located in Harper Woods, but moved to Warren at the start of the 2007-2008 school year. Located in the Roman Catholic Archdiocese of Detroit, Regina is sponsored by the Sisters of St. Joseph, Third Order of St. Francis.