Schools
C
| Name | Category | Notes |
|---|---|---|
| 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 | |
| Cator Park School | Comprehensive | Bromley. |
| Cedarhurst School | Miscellaneous | Solihull. |
| Cedars School | Comprehensive | Leighton Buzzard. |
| Celbridge School | Miscellaneous | |
| Chadderton Grammar School for Boys | Grammar | |
| Chadderton Grammar School for Girls | Grammar | |
| Chalvedon School | Unknown | Basildon, Essex. |
| Chantry Mount School | Other private | Bishops Stortford. |
| Chapter High School | Comprehensive | |
| Chard Grammar School | Other private | Somerset. |