Secondary Schools in Watthana District

NIST International School’s Sukhumvit 15 campus offers early years, primary and secondary education through the IB continuum. Find school and admissions contacts, current fees, pupil schedules, calendar and campus information.

English-medium secondary international programme for Years 7–13 at Prasarnmit Demonstration School, Sukhumvit 23. British-based study leads through IGCSE and A levels, with published admissions and year-specific fee information.

AISB’s Sukhumvit Soi 31 campus serves Foundation through Year 12 with Australian and British curriculum pathways, primary and secondary facilities, and campus-specific admissions and fees.

A private co-educational Cambridge Pathway school on Sukhumvit 39, offering Nursery through Year 13 with language options, creative activities and a vegetarian-food focus.

American-curriculum international school in Sukhumvit Soi 49/3, offering Pre-Kindergarten to Grade 12, project-based learning and Advanced Placement courses.

British-curriculum primary and secondary school on Ekkamai Soi 14, with Cambridge IGCSE and A Level pathways, published 2026–27 fees and a green campus.

English-medium American-curriculum school on Ekkamai 12, offering Pre-Kindergarten to Grade 12 within a Seventh-day Adventist Christian community.

Thai-curriculum Christian school in Ekkamai, offering pre-kindergarten to Mathayom 6, with primary English Programme and secondary English-focused options.

Private Seventh-day Adventist Christian international school in Khlong Tan Nuea, offering kindergarten through Grade 8.

British international school in T77, On Nut, with learning from age 2 to 18 across primary and secondary campuses, including IGCSE, A Level and BTEC pathways.