S. Peter's Catholic Secondary School is located in Barrie, Ontario, Canada.

St. Peters was founded in 1996 and had an addition built on the west side of the school in 2010-2011 which consisted of six new classrooms, a new dance studio and fitness room, and a new student success center to accommodate the growing number of students.

The uniforms include articles such as: polo shirts, vests, sweaters, cardigans, dress pants, walking shorts, capris, and gym apparel as well.

Students are only allowed to wear plain black or white t-shirts or long sleeved shirts under their uniforms.

Annual events include Monsignor Clair Cup, Halloween dress up day, Spirit week, Clash of Colours, PJ Day, Christmas assembly, Talent show, sears festival, locker clean-out, Ash Wednesday, Catholic Education Week, Ecuador Mission Trip, Film Festival, and Pride week.