| Religion | Roman Catholic |
|---|---|
| Headteacher | Mr David Burnett |
| Specialism | Maths and Computing College |
| Location | Manchester Road Astley Greater Manchester M29 7EE England |
| Local authority | Wigan |
| DfE URN | 106538 |
| Ofsted | Reports |
| Students | 1632 |
| Gender | Coeducational |
| Ages | 11–18 |
| Website | www.st-maryshigh.wigan.sch.uk |
St Mary's Catholic High School is a Roman Catholic Maths and Computing College in Astley, Greater Manchester.