St. Mary Catholic Secondary School (Pickering, Ontario)
| St. Mary Catholic Secondary School | |
|---|---|
| Address | |
1918 Whites Road , , Canada  | |
| Coordinates | 43°50′05″N 79°07′24″W / 43.83475°N 79.12337°W | 
| Information | |
| School type | High school | 
| Principal | Mr. J. Di Vizio | 
| Chaplain | Ms. M. Bosetti | 
| Grades | 9-12 | 
| Enrolment | 1,500 (2019/2020) | 
| Mascot | Leo The Lion/Monarchs | 
| Website | stmary | 
St. Mary Catholic Secondary School is a Catholic secondary school located in Pickering, Ontario, Canada established in 1987. Operated by the Durham Catholic District School Board (DCDSB), it is the only Catholic high school located in Pickering.