| Type | Other independent school |
| Phase | Secondary |
| Gender | Girls |
| Age Range | 11 - 18 |
| Headteacher | Mrs D Staunton |
| Address |
St Mary's Road South Ascot Ascot SL5 9JF |
| Religious Character | Roman Catholic |
| Website | https://www.st-marys-ascot.co.uk |
| Telephone | 1344296611 |
| Number of pupils | 390 |
| Inspection | |
| GCSE national ranking | -- |
| A-Level national ranking | Top 3% |
| Local authority | Windsor and Maidenhead |
| Region | South East |
| URN | 110120 |
| View this school information in GOV.UK website | |