Schools
C
| Name | Category | Notes |
|---|---|---|
| Cardinal Heenan Roman Catholic High School | Comprehensive | Leeds. |
| Cardinal Newman High School | Comprehensive | Bellshill. |
| Cardinal Vaughan Memorial School | Grammar | Holland Park. |
| Carlisle Grammar School | Grammar | |
| Carluke High School | Comprehensive | |
| Carmarthen Grammar School | Grammar | |
| Carmelite Monastery | Other private | Clondalkin, County Dublin. |
| Carnegie College | Miscellaneous | Leeds. |
| Carnoustie High School | Comprehensive | Angus. |
| Carrick Academy | Comprehensive | |
| Carshalton Boys Sports College | Comprehensive | Converted to academy in June 2011 |
| Castle Donington High School | Comprehensive | |
| Castlenock College | Miscellaneous | |
| Castle Park | Other private | Dalkey. |
| Castlereagh College of Further Education | FE college | |
| Caterham School | Public | |
| Cathedral School | Other private | Gloucester. |
| Catholic High School | Comprehensive | Chester. |
| Catholic Institute | Miscellaneous | Liverpool. |
| Catholic University School | Other private |