Schools
| Name | Category | Notes |
|---|---|---|
| Kingsridge Secondary School | Comprehensive | Glasgow. |
| King's School, Canterbury | Unknown | |
| King's School, Chester | Public | |
| King's School, Grantham, The | Grammar | |
| King's School, Macclesfield | Public | |
| Kings School, Rochester | Public | |
| King's School, Worcester | Unknown | |
| Kingston College | Other private | Hull. |
| Kingston Collegiate Institute | Miscellaneous | |
| Kingston Technical College | FE college | |
| Kingswinford School & Science College, The | Comprehensive | |
| Kingswood School | Unknown | Bath. |
| King William's College | Independent | Isle of Man. |
| Kippax Grammar School | Grammar | |
| Kirkcaldy High School | Grammar | |
| Kirkcaldy Public School | Unknown | |
| Kirkcudbright Academy | Grammar | |
| Kirkdale School | Unknown | Liverpool. |
| Kirkham Grammar School | Grammar | |
| Kirkwall Grammar School | Grammar | Orkney. |
| Knight's Naval School | Miscellaneous | Southsea. |
| Knightswood Senior Secondary School | Unknown | Glasgow. |
| Knockbreda Intermediate School | Unknown | |
| Kowloon School | Overseas | Independent. Hong Kong. |
| Labour College | Unknown | London. |