Rutgers Preparatory School (also known as Rutgers Prep or RPS) is a private, PK-12, coeducational, college preparatory day school, located on a 41-acre (0.17 km²) campus along the banks of the Delaware and Raritan Canal in Somerset, New Jersey. Established in 1766, Rutgers Preparatory School is the oldest independent school in the state of New Jersey and the sixteenth oldest in the United States.

The School's mission is: "Through excellence in education, we inspire students to discover and pursue their passions, embrace intellectual curiosity and creativity, and lead with confidence."

As of the 2014-15 school year, the school had an enrollment of 680 students (in Pre-Kindergarten through the 12th grade) and 104.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 6.5:1. Nine RPS faculty members hold doctoral degrees in their respective fields, and over half of the faculty currently holds an advanced degree.Tuition for the 2014-15 school year was set at $32,500. The school does not publicly release endowment figures, however IRS filings indicate close to $60 million in investable assets alone.

Preparatory school or prep school may refer to:

A British preparatory school (or prep school) is a fee-paying school for children of the ages of 8-13, often preparing them for entry into British public schools or other secondary independent schools.

Originally developed in England and Wales in the early 19th century as boarding schools to prepare boys for leading public schools, such as Eton and Winchester, the numbers attending such schools increased due to large numbers of parents being overseas in the service of the British Empire. They are now found in all parts of the United Kingdom, and elsewhere.

Boys' prep schools are generally for 8- to 13-year-olds, who are prepared for the Common Entrance Examination, the key to entry into many secondary independent schools. Before the age of seven or eight, the term "pre-prep school" is used. Girls' private schools in England tend to follow the age ranges of state schools more closely than those of boys. Girls' preparatory schools usually admit girls from the age of four or five, who will then continue to another independent school at 11, or at 13 if the school is co-educational (as most secondary schools now are). However, as more girls now go on to formerly single-sex boys' schools which have become co-educational, the separation is less clear.