Bishop Ireton High School is a Roman Catholic High School located in Alexandria, Virginia. The school was founded in 1964 by the Oblates of St. Francis DeSales, and named in honor of Peter Leo Ireton, Bishop of Richmond from 1945 to 1958. The school originally admitted only male students. Bishop Ireton, more commonly known as "BI" or simply "Ireton", became coeducational in 1990 after the closing of sister school, St. Mary's Academy.