Top International Schools in London

Overview: IGCSE, A-Level · 7–18 · £6.3K–£22.5K

Dulwich College is a historic independent day-and-boarding boys' school (ages 2–19) in South London, founded in 1619 by actor Edward Alleyn. It offers rigorous British education through IGCSE and A-Level programmes alongside an exceptionally rich co-curricular life with over 130 clubs and societies. Around 1,860 pupils benefit from a 75-acre green campus featuring modern science laboratories, a purpose-built theatre, world-class arts facilities, and extensive sports grounds. The school emphasises character alongside scholarship, and the majority of graduates proceed to top universities worldwide including Oxford, Cambridge, and Ivy League institutions.

Overview: IGCSE, A-Level · 13–18 · £10.2K–£12.9K

St Paul's School is one of England's most prestigious independent boys' day and boarding schools, founded in 1509 by John Colet on the Thames in Barnes, London. It educates approximately 1,517 boys aged 7–18 across its Prep and Senior schools, offering IGCSEs and A-Levels within a highly selective, academically rigorous environment. The school is consistently ranked among Britain's top academic schools and sends over a quarter of its leavers to Oxford or Cambridge each year. Beyond academics, it offers an extraordinary co-curricular programme spanning 90+ clubs, elite sports facilities on 45 acres, and a vibrant arts and drama scene. Underpinned by values of Respect, Kindness, Humility, Integrity and Resilience, it aims to nurture Paulines who make a positive contribution to the world.

Overview: IB PYP, IB MYP · 4–18 · £15.2K–£36K

ACS Hillingdon is a leading London international school offering IB and Advanced Placement programmes to students aged 3–18. Set in a historic mansion campus in Uxbridge, Middlesex, it combines rigorous academics with exceptional sports, performing arts, and co-curricular facilities. With a diverse community of approximately 546 students representing dozens of nationalities, the school emphasises 'learning how to learn' through an inquiry-based, student-centred approach. Rolling admissions makes it accessible year-round for internationally mobile families and local residents alike. Graduates consistently earn places at top universities worldwide, including Imperial College, UCL, Cambridge, NYU, and Cornell.

Overview: IGCSE, A-Level · 13–18 · £49.4K–£69.3K

Westminster School is one of England's most prestigious independent day-and-boarding schools, occupying a historic campus in the heart of Westminster, London, adjacent to Westminster Abbey. Founded in the 12th century and re-established under a royal charter granted by Elizabeth I in 1560, it offers A-Level and GCSE/IGCSE curricula to approximately 773 pupils aged 13–18. The school is renowned for exceptional academic outcomes, with 58% of A-Level candidates achieving A* grades and 72 pupils gaining places at Oxford or Cambridge in 2025 alone. Its ethos centres on open intellectual dialogue, critical thinking, and the holistic development of well-rounded, compassionate individuals. With a vibrant House system, outstanding arts and sports facilities, and generous bursary provision, Westminster prepares students for leading universities worldwide.

Overview: IGCSE, A-Level · 13–18 · £63.7K

Harrow School is one of England's most historic and prestigious independent boarding schools for boys, founded in 1572 by royal charter. Set on a hill in northwest London, it educates approximately 830 boys aged 13–18 across 12 distinctive boarding houses, offering a full-boarding experience that combines academic rigour with extraordinary co-curricular breadth. Harrow prepares students for IGCSE and A-Level examinations, with nearly all leavers proceeding to leading universities worldwide including Oxbridge and the Ivy League. The school's 450-year tradition of intellectual, artistic, and sporting excellence, combined with its strong pastoral house system, makes it a defining institution of British independent education.