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