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Harrow International School

Verified by Viktoriya Lindner in May 2026
฿

1st-Year Total

฿792K–฿1.77M

All-in estimate

Curriculum

British

A-Levels, IGCSE

Level of Education

1–19 yo

Nursery → High School

Language of Instruction

English

+ 5 more languages

Students

1,680

At this campus

Harrow Bangkok opened in 1998 as the first Harrow-branded school outside the UK, and it remains the largest in the Harrow family worldwide. Over 1,500 students from 37 nationalities, ages 18 months to 18, on a green 35-acre campus in Don Mueang, north Bangkok. The school follows the British National Curriculum from Early Years through to Cambridge IGCSE and A-Levels, with no IB. It is part of the AISL Group, which operates the Harrow International Schools in Bangkok, Beijing, Shanghai, and Hong Kong under licence from Harrow School London, with shared governors and staff movement across the network. Boarding is available from Year 6 and the school runs 32 bus routes across Bangkok. The Don Mueang location is in the far north of the city, a 45 to 60 minute drive from central Sukhumvit in peak traffic, and close to Don Mueang International Airport. Many Harrow families live in the northern Bangkok corridor specifically because of the school. Fees run from roughly 614,600 to 1,037,100 THB annually, placing it among the most expensive British curriculum schools in the city. The name carries weight, the campus delivers, and the community is one of the most established of any international school in Bangkok.

1st Year Tuition Fees (2025–2026)The school hasn't published 2026–2027 fees yet. We're displaying 2025–2026 rates as a reference; these may be updated once the new figures are released.

Estimated cost for any age group entering this school

Admission & Enrollment฿655,000 – ฿730,000
Application Fee฿5,000
Registration Fee฿225,000
Security Deposit฿200,000 – ฿275,000
Seat Reservation Fee฿225,000
Annual Tuition฿136,800 – ฿1,037,100
Total 1st Year Estimated฿791,800 – ฿1,767,100
(฿425,000 refundable)

Tuition fees (2025–2026)

AgeGradeAnnual Tuition
1–2Daycare฿136,800
5–6Year 1฿737,300
6–7Year 2฿852,600
7–8Year 3฿852,600
8–9Year 4฿852,600
9–10Year 5฿852,600
10–11Year 6฿852,600
11–12Year 7฿933,900
12–13Year 8฿933,900
13–14Year 9฿933,900
14–15Year 10฿1,012,200
15–16Year 11฿1,012,200
16–17Year 12฿1,012,200
17–18Year 13฿1,037,100

What You Should Actually Know About Harrow International School

Harrow International School Bangkok is a co-educational British day and boarding school set on a 35-acre lakeside campus in the Don Mueang district of north Bangkok. Founded in 1998 as the first Harrow School outside the United Kingdom, it educates around 1,680 students aged 18 months to 18 years drawn from 35 nationalities, and forms part of the AISL Harrow Schools network linked to the historic Harrow School in London.

The school delivers a full English National Curriculum pathway, beginning with the Early Years Foundation Stage and progressing through the Cambridge IGCSE, AS Level, and A Level qualifications, alongside SAT and IELTS preparation in the Sixth Form. Academic life is organised around a High Performance Learning culture and the school's signature Leadership in Action programme, which immerses pupils in service, expeditions, sport, and creative arts to embody the values of Courage, Honour, Humility, and Fellowship.

Class sizes are kept small, averaging 18 in Prep, 16 at IGCSE, and just 8 in Sixth Form A Level groups, supported by roughly 255 teachers, the majority recruited from the United Kingdom. Specialist provision includes a free Language Support Department offering EAL for Pre-Nursery to Year 5 students for up to three years, Fast Track English in Prep and Year 9, and dedicated learning support staff. Outcomes are consistently strong, with 70 percent of A Level grades and 71 percent of IGCSE grades reaching A* to A in 2025, and most leavers progressing to first-choice universities including Oxford, Cambridge, Imperial, UCL, Stanford, and Columbia.

Facilities are purpose-built and extensive, encompassing a Creative and Performing Arts Centre with a Steinway recital hall and Black Box theatre, an eight-lane 25-metre swimming pool, floodlit rugby and football pitches, six tennis courts, a 60-metre athletics track, gymnastics and dance studios, a climbing wall, and a working lake used for sailing and dragon boating.

Four boarding houses (The Knoll, West Acre, Bradbys, and The Grove) offer weekly and full boarding to pupils from Year 5 upwards, supported by on-site medical centres and resident pastoral staff. Accreditation by FOBISIA, CIS, and the British Schools Overseas inspection regime, which rated the school Outstanding in all areas in 2023, underpins its standing as one of Asia's leading British international schools.