Schools
| Name | Category | Notes |
|---|---|---|
| Arnold House School, London | Public | |
| Arnold School, Blackpool | Public | |
| Ashby de la Zouche Grammar | Grammar | |
| Ashford School, Kent | Independent | |
| Ashington Community High School | Comprehensive | |
| Ashington Mining College | FE college | |
| Ashleigh House, Belfast | Other private | |
| Ashton-under-Lyne College of Education | FE college | |
| Ashville College, Harrogate | Other private | |
| Aston Comprehensive, Rotherham | Comprehensive | |
| Aston & Coventry Technical College | FE college | |
| Atherstone Grammar School | Grammar | |
| Atherstone Secondary Modern School | Secondary Modern | |
| Atkinson Rd Technical School, Newcastle-on-Tyne | Miscellaneous | |
| Auchtermuchty School, Fife | Other private | |
| Audenshaw Grammar School for Boys | Grammar | |
| Avery Hill College of Education | FE college | |
| Avondale High School, Stockport | Comprehensive | |
| Aylesbury College | FE college | |
| Aylesbury Grammar School | Grammar |