- Keith Grammar School (Banffshire)
- Keith Grammar School and St. Rufus Church
- Kelty Public School (Fife)
- Kelty Public School, Fife
- Kennigton Primary School (Aveley)
- Kidonan Secondary School (Coatbridge)
- Killermont Primary School (Glasgow)
- King David Hebrew School (Liverpool)
- King Edward VII School (Johannesburg, S. Africa)
- King Richards Road Intermediate School (Leicester)
- King's Lynn Technical College (Norfolk)
- King's Park Senior Secondary School (Glasgow)
- Kingfisher Junior Mixed School (Doncaster)
- Kingsmead County Primary School (Canterbury)
- Kinnaird Park School (Bromley)
- Kinneil Primary School (Bo'ness)
- Kirkby Stephen Grammar School, Westmorland
- Kirkwall Grammar School (Orkney)
- Knavesmire Primary School (York)
- Knowle Parochial School (Solihull)
- Knox Academy (Haddington)
- La Sagesse Convent School (Liverpool)
- La Sainte Union Convent High School for Girls (Grays)
- Lady Belper's School
- Lady Belper's School (Leicestershire)
- Lady Modiford's School (Walkhampton)
- Ladysmith School (Exeter)
- Lairthwaite Secondary Modern School (Keswick)
- Lancing
- Lancing
- Langley Council School (Dawley)
- Larchwood Primary School
- Laurel Bank School (Glasgow)
- Lawn Upton School (Oxford)
- Leagrave Junior School (Luton)
- Leatherhead County Secondary School (Surrey)
- Ledbury Girls' School (Herefordshire)
- Leek County Primary School (Staffs.)
- Levern School (Glasgow)
- Leyland County Junior School (Lancs)
- Leys
- Leys
- Lime Tree County Primary School (Sale Moor)
- Limehurst Secondary Modern (Hollinwood)
- Lincoln Gardens School (Scunthorpe)
- Links Junior Mixed School (Mitcham)
- Linnvale Primary School (Clydebank)
- Litherland Moss County Primary School (Liverpool)
- Liverpool Girls' College
- LLandovery