Is RIS a Catholic school?

It was founded by Redemptorist priests and retains a Catholic ethos, but it welcomes students of all faiths and most students are not Catholic.

Does RIS offer the IB Diploma?

Yes. Grade 11 and 12 students can choose to pursue the IB Diploma alongside the US high-school diploma pathway.

Where is RIS located?

On Ramkhamhaeng 184 in Min Buri, eastern Bangkok, about 40 minutes from central Sukhumvit via tollway.

Yes, by WASC (Western Association of Schools and Colleges). It is also a long-standing member of EARCOS.

Are entry tests required?

Yes — applicants submit prior records and sit MAP and English assessments; interviews are part of admission.

Bangkok · Min Buri

Ruamrudee International School (RIS)

Ruamrudee International School is a Catholic-founded, US-style college-prep school on a 75-acre Min Buri campus offering PreK to Grade 12 plus the IB Diploma. Founded in 1957 by Redemptorist priests, it is fully accredited by WASC and known for its sports, music and AP/IB pathways.

Curriculum

American

Ages Accepted

full

Tuition Tier

₿₿₿

Tuition Range (THB/year)

฿520,000–฿820,000

Main Language

English

Entry Exam

Required

Founded

1957

Website

Visit

Notes for Parents

75-acre campus in Min Buri with theatre, two pools and full sports complex
Dual pathway: US high-school diploma plus optional IB Diploma
Catholic ethos but multi-faith student body; chapel and Theology elective
Accredited by WASC; member of EARCOS and IASAS sports league
Bus routes across central Bangkok and eastern suburbs

Frequently Asked Questions

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