St. John's Preparatory School (Massachusetts)
| St. John's Prep | |
|---|---|
| Address | |
72 Spring Street , 01923 United States | |
| Coordinates | 42°34′57″N 70°57′10″W / 42.58250°N 70.95278°W |
| Information | |
| Other names |
|
| Type | Private college-preparatory school |
| Motto | Latin: Concordia Res Parvae Crescunt (In Harmony Small Things Grow) |
| Religious affiliation(s) | Roman Catholic |
| Established | 1907 |
| Founders | Xaverian Brothers |
| NCES School ID | 00600937 |
| Head of school | Edward P. Hardiman |
| Teaching staff | 146.8 (on an FTE basis) |
| Grades | 6–12 |
| Gender | Boys |
| Enrollment | 1,460 (2024–2025) |
| Student to teacher ratio | 10.0 |
| Campus size | 175 acres (71 ha) |
| Campus type | Suburban |
| Color(s) | Navy Blue and White |
| Slogan |
|
| Song | Far above the neighboring hilltops |
| Athletics conference | MIAA Catholic Conference |
| Nickname | Eagles |
| Rival | Xaverian Brothers High School |
| Accreditation | New England Association of Schools and Colleges |
| Publication | Piece of Mind |
| Newspaper | The Concordia |
| Yearbook | The Spire |
| Website | stjohnsprep |
St. John's Preparatory School is a grade 6–12 private, Catholic, all-boys college-preparatory school located at 72 Spring Street, Danvers, Massachusetts, United States. It was established in 1907 by the Xaverian Brothers.
St. John's was formerly a combination commuter-boarding school but ended its residential program in 1975.