Schools
I
| Name | Category | Notes |
|---|---|---|
| Icknield High School | Comprehensive | Luton. |
| Idsall School | Academy | |
| Ilkley High School | Grammar | |
| Imperial Service College | Service College | Windsor. |
| Independent College | Other Private | Taunton. |
| Inverness Royal Academy | Other Private | |
| Inverurie Academy | Academy | |
| Ipswich School | Public | |
| Irish College | Overseas | Paris, France. |
| Irvine Public School | Other Private | |
| Islay High School | Grammar | Argyll. |
| Isleworth Grammar School | Grammar | |
| Islington Proprietary School | Other Private | |
| Itchen Grammar School | Grammar | Southampton. |