Harrow International School Bangkok

Harrow International School Bangkok opened in 1998 as the first Harrow school in Asia, affiliated with Harrow School in England (founded 1572). Since 2003 it has occupied a purpose-built 35-acre campus on Kosumruamchai Road in Don Mueang, in the north of Bangkok, and it takes children from a parent-and-toddler programme at 18 months through to Year 13.

The school follows a British curriculum leading to IGCSEs and then A-Levels in the Sixth Form, with pastoral care organised around a Harrow-style House system and a 'Leadership in Action' extracurricular programme. It holds a British Schools Overseas inspection and Thai ONESQA certification, belongs to FOBISIA, and offers academic, sixth-form, arts and music scholarships, usually as a fee reduction.

Around 1,800 students from about 35 nationalities attend, roughly 140 of them boarders in four houses in the campus Boarding Village, with weekly and full boarding from the Prep years. The location suits families in north Bangkok; those in central districts should check bus routes. For 2026/27, tuition is about THB 962,000 a year in Years 6–8 and THB 1.04 million in Years 9–11.