Schools
S
| Name | Category | Notes |
|---|---|---|
| St Mary's School, Erdlington | Comprehensive | |
| St Mary's School, High Whifflet | Unknown | |
| St Mary's School, Llanelli | Elementary | |
| St Mary's School, Newcastle-upon-Tyne | Elementary | |
| St Mary's School, Rawtenstall | Unknown | |
| St Mary's Sixth Form College | Sixth form college | Saltersgill. |
| St Mary's & St Anne's | Public | Independent Girls' School. Abbots Bromley. |
| St Mary's Technical School | Comprehensive | Newcastle upon Tyne. |
| St McNissi's College | Grammar | Active 1951-2010. Colloquially known as Garron Tower. Carnlough, Northern Ireland. |
| St Mels | Other private | Longford. |
| St Michael's Academy | Unknown | Kilwinning. |
| St Michael's College, Leeds | Grammar | check status |
| St Michael's School, Llanelli | Unknown | |
| St Michael's School, Westgate | Unknown | |
| St Modan's High School | Comprehensive | Stirling. |
| St Monica's College | Other private | Burgh Heath, Surrey. |
| St Munchen's Seminary | Miscellaneous | Limerick. |
| St Mungo's Academy | Other private | Glasgow. |
| Stockport College of Technology | FE college | |
| Stockport Grammar School | Public |