| St. Jean de Brebeuf Catholic High School | |
| Address: | 2 Davos Road |
| Country: | Canada |
| Coordinates: | 43.8342°N -79.5592°W |
| Schooltype: | Catholic High School |
| Motto: | Eruditio mentis animae nutrimen |
| Motto Translation: | Educating the mind, nurturing the soul |
| Founded: | 2005 |
| Superintendent: | Jennifer Sarna |
| Trustee: | Maria Marchese |
| Principal: | Elisa Mastromartino |
| Grades: | 9-12 |
| Enrolment: | 1588 |
| Enrolment As Of: | October 2023 |
| Language: | English |
| Colours: | Black and Yellow |
| Mascot: | Buddy the Black Bear |
| Team Name: | Black Bears |
St. Jean de Brebeuf Catholic High School, also known as SJDB, is a Catholic high school located in Woodbridge, Ontario, Canada. Opened in September 2005 to about 600 students, it has since grown to just over 1500 enrolled students. The school started with only grades 9 and 10 in the first year it opened. SJDB is part of the York District Catholic School Board (YCDSB). St. Jean de Brebeuf has six computer labs, two full size gyms, two full size grass soccer fields, a running track, tennis courts, and a baseball diamond. It has an agreement with the Vellore Village Community Center, which is directly connected to the school, granting students patronage of the full size swimming pool, gym and youth room.
The feeder schools for St. Jean de Brebeuf are:
[1] Students in at the following schools have the option to attend Holy Cross, Father Bressani, or St. Jean De Brebeuf.