List of boys' schools in the United Kingdom

Here is a list of, in the United Kingdom, the Crown Dependencies, and British Overseas Territories, schools which only admit boys, or those which only admit boys at certain levels/years/grades, or those which follow the Diamond Schools model (separating students by gender at points).

England

 * Bedfordshire
 * Bedford School
 * Challney High School for Boys
 * Berkshire
 * Eton College
 * Devon
 * Devonport High School for Boys
 * Torquay Boys' Grammar School
 * Essex
 * New Hall School Boys' Senior School
 * Gloucestershire
 * Marling School
 * Sir Thomas Rich's School (all boys for secondary, coeducational for sixth form)
 * Greater London
 * Ernest Bevin Academy
 * Brondesbury College
 * Central Foundation Boys' School
 * City of London School
 * Darul Uloom London
 * Dulwich College
 * Forest Hill School
 * Gunnersbury Boys' School
 * Harrow School
 * London Oratory School (boys only for ages 7–16, coed for ages 16–18)
 * Norlington School for Boys
 * Royal Liberty School
 * St Paul's School, London
 * Tawhid Boys School
 * Tiffin School for Boys (boys only for secondary, coed for sixth form)
 * Westminster School (boys only for primary and secondary, coed for sixth form)
 * Greater Manchester
 * Altrincham Grammar School for Boys
 * Bolton School Single Sex Junior, Senior, and Sixth Form schools
 * Bury Grammar School
 * Burnage Academy for Boys
 * Darul Uloom Bolton
 * Manchester Grammar School
 * Manchester Mesivta School
 * Hampshire
 * Winchester College (boys only for Years 9-11, co-educational for sixth form as of September 2022)
 * Salesian College, Farnborough (boys only for years 7-11 co-educational for sixth form)
 * Hertfordshire
 * Berkhamsted School Separate Boys' Senior School
 * Haberdashers' Aske's Boys' School
 * Richard Hale School
 * Hitchin Boys' School
 * Merchant Taylors' School, Northwood
 * St Albans School
 * Verulam School (formerly St Albans Boys' Modern School and St Albans Grammar School for Boys) - Boys only for ages 11-16 and coed for sixth form
 * Watford Grammar School for Boys
 * Kent
 * Dartford Grammar School (coed for sixth-form, with pre-sixth-form grades reserved for boys)
 * Dover Grammar School for Boys
 * The Howard School, Kent
 * Simon Langton Grammar School for Boys
 * Sir Joseph Williamson's Mathematical School (coed for sixth-form, with pre-sixth-form grades reserved for boys)
 * Tonbridge School
 * Tunbridge Wells Grammar School for Boys
 * Wilmington Grammar School for Boys


 * Lancashire
 * Tauheedul Islam Boys' High School
 * Leicestershire
 * Loughborough Grammar School
 * Lincolnshire
 * Boston Grammar School (coed for sixth-form, with pre-sixth-form grades reserved for boys)
 * The King's School, Grantham
 * Newcastle
 * Newcastle School for Boys
 * Northamptonshire
 * Northampton School for Boys
 * Potterspury Lodge School
 * Oxfordshire
 * Magdalen College School, Oxford (boys only except for sixth form, which is coed)
 * Radley College
 * Surrey
 * Charterhouse School (sixth form coeducational since 1971, coeducational for ages 13+ since 2017, will be fully coeducational by 2023)
 * More House School, Frensham
 * St James Independent Schools Senior Boys' School
 * Royal Grammar School, Guildford
 * West Midlands
 * King Edward's School, Birmingham
 * West Sussex
 * Chichester High School For Boys
 * Wirral
 * Calday Grange Grammar School; years 7-11
 * Former
 * Abbotsholme School
 * Cambridgeshire High School for Boys, which became Long Road Sixth Form College
 * Cheltenham College (now coeducational)
 * City of Oxford High School for Boys
 * The Crypt School (now coeducational)
 * Haileybury and Imperial Service College
 * Handsworth Wood Boys' School
 * Heatherdown School
 * Littlemoss High School: merged with Droylsden School, Mathematics and Computing College for Girls to form Droylsden Academy
 * Manchester Central Grammar School/High School for Boys, which merged into Manchester Academy in 1967
 * Norwich High School for Boys, which became Langley School
 * Purley High School for Boys, which became Coulsdon Sixth Form College
 * Repton School (now coeducational)
 * Rugby School (sixth form became coeducational in 1975 and became fully coeducational circa 1992)
 * Sedbergh School (became coeducational circa 2001)
 * Shrewsbury School (became fully coeducational in 2014)
 * St George's School, Ascot (converted into a girls' school)
 * St John's School, Leatherhead – fully coeducational since 2012
 * St Peter's School, York (single-sex until 1976; fully coeducational since 1987)
 * Wandsworth School
 * Warwick School for Boys
 * Wellington College
 * Westholme School previously had a separate boys' junior school
 * Woolverstone Hall School
 * Worth School, now coeducational
 * Wyggeston Grammar School for Boys, which became Wyggeston and Queen Elizabeth I College
 * Wykeham House School - had separate boys and girls schools - closed

Northern Ireland

 * Ashfield Boys' High School
 * Belfast Boys' Model School

Scotland

 * Stewart's Melville College


 * former boys' schools
 * Hutchesons' Grammar School (had separate boys' school - became coeducational in 1976)

British Crown Dependencies

 * Guernsey
 * Elizabeth College, Guernsey
 * Jersey
 * De La Salle College, Jersey
 * Victoria College, Jersey

British Overseas Territories

 * Gibraltar
 * Formerly for boys only: Bayside Comprehensive School (now coeducational)