Don Bosco Preparatory High School (Don Bosco Prep) is a private, Roman Catholic secondary school for young men in ninth through twelfth grades. Founded in 1915 as a boarding school for Polish boys, by the Salesians of Don Bosco, a religious community of priests and brothers, the school is situated on a 35 acres (140,000 m²) campus in Ramsey, in Bergen County, New Jersey, United States.