Schools
| Name | Category | Notes |
|---|---|---|
| Ackworth School | Other Private | |
| Acton County Grammar School | Grammar | |
| Acton Technical College | FE College | |
| Adams Grammar School, Newport, Shropshire | Grammar | |
| Ainslie Park High School, Edinburgh | Grammar | |
| Airdrie Academy, Airdrie | Comprehensive | |
| Aldenham School | Public | |
| Alderman Newton's Grammar School, Leicester | Grammar | |
| Aldridge Grammar School | Grammar | |
| Alexandra School, Dublin | Other Private | |
| Alexandra School, New Zealand | Overseas | Other private |
| Allan Glen's College, Glasgow | Other Private | |
| Alleyn's School | Public | |
| Allhallows, Lyme Regis | Other Private | |
| Alloa Academy | Other Private | |
| Alsop High School, Liverpool | Grammar | |
| Alston College, Preston | Other Private | |
| Alton College | FE College | |
| Altrincham Grammar School | Grammar | |
| Amersham Hall School | Other Private |