Oratory Preparatory School, commonly known as Oratory Prep, is a Roman Catholic college preparatory day school for boys in grades 7-12, located in Summit, in Union County, in the U.S. state of New Jersey, approximately 19 miles (31 km) west of Manhattan.

Tuition for the 2022–23 academic year is $25,400 and a $300 registration fee is required; this does not include costs for transportation, books and meals.

[8][9] Oratory originally resided on a 15-acre (61,000 m2) lot, but was reduced to its current ten after selling off a portion of land in the 1960s.

Among century-old specimen trees and rolling hills, the campus consists of two main academic buildings, athletic fields, and a prayer garden.

[20] The boys cross country running team won the Non-Public Group C state championship in 1974 (as co-champion) and 1975.

[17] The varsity baseball team were conference champions in 2006, a feat not accomplished since 1956, and had a perfect in-conference record of 12-0.

[7] The mock trial team, sponsored by the New Jersey State Bar Foundation, began at Oratory in 2003.