Chiang Mai · San Sai
Nakornpayap International School
Nakornpayap International School (NIS) is an American-curriculum, WASC-accredited school in San Sai, on the north-eastern edge of Chiang Mai. It runs Pre-K through Grade 12 leading to a U.S. high-school diploma and AP courses, and has historically been one of the more affordable full-English international options in the north.
Notes for Parents
- WASC-accredited U.S. curriculum with Advanced Placement (AP) courses in the upper grades.
- Located on a green suburban campus in San Sai, roughly 15 minutes from the Super Highway ring road.
- One of the most affordable full international schools in Chiang Mai at the upper-secondary level.
- Korean and Thai are widely spoken among the student body alongside English.
- School-bus routes run from Nimman, the Old City, Hang Dong and the San Kamphaeng road.
- Sports and after-school clubs include football, basketball, swimming and a Model UN programme.
Frequently Asked Questions
Accreditation
Nakornpayap International School states on its own website that it holds the following. Read 2026-08-22; not independently confirmed with the accrediting bodies, so check directly if it is decisive for you.
- ONESQAThailand's national education quality assessment
- WASCWestern Association of Schools and Colleges — the US regional accreditor
Other schools worth comparing
Chosen by shared curriculum, city and fee band — the attributes on this page, not an editorial ranking.
- Unity Concord International SchoolSame area — San Sai · Also American curriculum in Chiang Mai · similar fee band
- American Pacific International SchoolAlso American curriculum in Chiang Mai · similar fee band
- Grace International SchoolAlso American curriculum in Chiang Mai · similar fee band
- Chiang Mai International SchoolAlso American curriculum in Chiang Mai
- Christliche Deutsche Schule Chiang MaiGerman curriculum, also in Chiang Mai · similar fee band
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