Seton Hall Preparatory School

Seton Hall Preparatory School, generally called Seton Hall Prep, is a Roman Catholic boys' high school located in the suburban community of West Orange in Essex County, New Jersey, operating under the supervision of the Archdiocese of Newark. Founded in 1856 with an original enrollment of five boys, Seton Hall Prep was originally located on the campus of Seton Hall University where it became commonly known as "The Prep" as a way to distinguish it from "The University." In 1985, The Prep moved to its present location which was, at the time, West Orange High School. Seton Hall is the oldest Catholic college preparatory school in New Jersey.

As of the 2009-10 school year, the school had an enrollment of 941 students and 71.3 classroom teachers (on an FTE basis), for a student–teacher ratio of 13.2:1.

Seton Hall students follow a college preparatory program, with four-year requirements in the English language, mathematics, and theology. After completing a traditional core program during the first two years, students may establish a curriculum geared to their college and career plans from a wide selection of courses in science, history, language, fine arts, English and physical education. College-level Advanced Placement (AP) courses are available in 17 areas.

"The Prep" is accredited by the Middle States Association of Colleges and Schools Commission on Secondary Schools and is a member of the New Jersey Association of Independent Schools.