St Mary's Christian Brothers' Grammar School, Belfast
| St. Mary's Christian Brothers' Grammar School Scoil Mhuire na mBráithre Críostaí | |
|---|---|
| Address | |
147a Glen Road , BT11 8NR Northern Ireland | |
| Coordinates | 54°34′57″N 6°00′03″W / 54.582527°N 6.000836°W |
| Information | |
| Type | Grammar School |
| Religious affiliation(s) | Roman Catholic |
| Established | 1866/1929 |
| Local authority | Education Authority (Belfast) |
| Chair | Sean Mahon |
| Principal | Mr. Brendan McComb |
| Staff | 157 |
| Gender | All-Male |
| Age | 11 to 19 |
| Enrolment | 1170 |
| Colour(s) | |
| Website | stmaryscbgs |
St Mary's Christian Brothers' Grammar School (St Mary's CBGS) is a Roman Catholic boys' grammar school in Belfast, Northern Ireland.