International School · Day School · Through School (K-12)

Ramkhamhaeng Advent International School
Bangkok, Thailand
Last updated: Jun 21, 2026
- Curriculum
- US Curriculum
- Nationalities
- 19+
Overview
Ramkhamhaeng Advent International School is an international US Curriculum school for ages 5–18 in Bangkok, Thailand. Founded in 1999. The language of instruction is English, with EAL support available.
At a Glance
US curriculum with WASC accreditation — 100% of graduates pursue higher education, with Advanced Placement courses available for college credit
Internationally diverse student body — 800+ students from 19 nationalities, with 29% international and 71% Thai students in balanced enrollment
Entrance assessment required — mandatory English and mathematics exams plus interviews; EFL support classes provided for students below English proficiency threshold
Mid-range international pricing — THB 167,500–187,500 annual tuition plus THB 20,000–50,000 enrollment fee and THB 20,000 deposit for new students
Suited for families seeking Christian-values education within a US curriculum framework, operated by Seventh-day Adventist church with small class sizes averaging 18 students
Curriculum & Academics
Languages of Instruction
Languages of Instruction
Compulsory / Optional
Subjects Offered
7 subjectsUS Curriculum(7)
Accreditations & Memberships
2 accreditationsAdmissions
Requirements
Grade 1 – Grade 6
English Requirement: Intermediate English
Interview Required (In-person)
Application Fee: 20,000
Grade 7 – Grade 12
English Requirement: Advanced English
Interview Required (In-person)
Application Fee: 50,000
Key Dates
Second semester begins 6 January 2026.
School Life
- Term system
- Semester
- Uniform
- Required
- Lunch
- cafeteria
Support & Wellbeing
- Counsellors
- 3
Co-curricular Activities
8 activitiesTeam Sports(3)
Individual Sports(4)
School-specific(1)
Grades: Secondary
Facilities
9 facilitiesSports & Athletics(3)
Academic Facilities(2)
Outdoor Spaces(1)
Dining(1)
School-specific(2)
Location & Access
Getting There
School Bus
RAIS provides school van services for student transportation. All school vans have van assistants. Routes operate across Bangkok with distance-based pricing. Students must follow transportation rules and safety guidelines.
Coverage Areas: Bangkok metropolitan area
Campuses
Main Campus
Ramkhamhaeng Advent International School – Main Campus
Ramkhamhaeng, Bangkok, Thailand
Schoozy Insights
A Multicultural Community with a Thai-International Balance
RAIS serves a student body that is roughly 71% Thai and 29% international across 19 nationalities, creating a locally-rooted but internationally-minded school community.
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Who Studies at RAIS?
Unlike many Bangkok international schools that cater almost exclusively to expatriate families, RAIS has a notably mixed student body. Approximately 71% of students are Thai nationals, with the remaining 29% drawn from roughly 19 different countries. This demographic profile reflects the school's location in a primarily residential Thai neighbourhood, its relatively accessible fee structure compared to the most expensive Bangkok international schools, and its dual appeal to Thai families seeking English-medium education and expatriate families seeking a quality, values-based schooling option.
The Adventist Community Connection
The Seventh-day Adventist denomination provides an important community glue at RAIS. Adventist families — both Thai and international — are drawn to the school for its faith alignment. The Pathfinders and Adventurers clubs (Adventist equivalents of scouting organisations) serve as community-building activities that cut across nationality lines, with students from diverse backgrounds participating together in service projects, outdoor activities, and skills development.
Parent and Family Engagement
The school operates a structured admissions process that includes parental engagement from the outset. Transportation guidelines emphasise parent-school collaboration on student safety, and the three-counsellor guidance team serves as a point of contact for both academic and pastoral family concerns. The school's community also benefits from the wider Adventist network in Bangkok, which provides a ready-made social infrastructure for new families arriving in the city.
Language and Cultural Diversity in Practice
With instruction primarily in English and Thai language taught as a compulsory subject, RAIS students develop bilingual competence as a matter of course. Chinese is offered as an additional language, reflecting the significant Chinese-heritage community among both Thai nationals and regional expatriates. The EFL programme ensures that international students who arrive with limited English can integrate into the school community without being excluded from core academic content.
Waiting List Reality
Despite — or perhaps because of — its mixed community appeal, RAIS maintains a waiting list for admissions as of 2025. This suggests demand exceeds capacity, and prospective families are advised to begin the application process well ahead of their intended entry date.
Entrance Exams, EFL Placement, and a Waitlist: Navigating RAIS Admissions
RAIS requires written English and Math tests plus an interview for all applicants. Students below English threshold are placed in EFL; a waitlist is active as of 2025.
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A Structured, Test-Based Admissions Process
Admission to RAIS is not a formality. The school requires all applicants to sit a written entrance examination covering English and Mathematics, followed by a student interview. This reflects the school's commitment to maintaining academic standards even as it serves a broad community of Thai and international students.
Age Requirements and Grade Entry
The school publishes age requirements for each grade level, ensuring that students enter the appropriate year group. Applicants who do not meet the age threshold for their desired grade are not admitted to that level, maintaining the integrity of the year-group structure.
The EFL Pathway
A distinctive feature of RAIS admissions is the EFL (English as a Foreign Language) placement pathway. Students who sit the entrance examination but score below the required English proficiency threshold are not automatically rejected — instead, they may be offered a place in the EFL programme, which runs alongside the mainstream curriculum. This pathway makes the school accessible to Thai students and recently-arrived international students whose English is still developing, while protecting the English-medium learning environment of the mainstream classes.
Application Timeline
Applications are typically received through July for the August start of the academic year. The school operates on a two-semester calendar (Semester 1: August–December; Semester 2: January–May), and new students may in principle enter at the start of either semester subject to place availability.
Waiting List
As of 2025, RAIS operates a waiting list, indicating that demand for places exceeds current capacity. Prospective families — particularly those relocating to Bangkok — are strongly advised to submit applications as early as possible and to contact the school's Information Centre directly to understand current availability by grade level.
Fees at Application Stage
A registration/application fee is charged at the point of application (reported at 20,000–50,000 THB depending on grade level), with a refundable deposit of 20,000 THB payable upon acceptance for K1 and above students.
A Secure, Air-Conditioned Campus with Comprehensive Facilities in Ramkhamhaeng
RAIS operates a fully air-conditioned campus with sports courts, science labs, three cafeterias, a swimming pool, boarding facilities, and 24/7 security in Bangkok's Ramkhamhaeng district.
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Campus Overview
The RAIS campus is a self-contained educational environment in Bangkok's Ramkhamhaeng district. Fully air-conditioned throughout — a practical necessity in Bangkok's climate — it provides a comfortable learning environment year-round for its 800-plus students across Preschool to Grade 12.
Academic Facilities
The campus includes standard academic spaces (fully equipped classrooms), specialised science laboratories for secondary students, a computer/technology room, and dedicated arts and music facilities. The library, while not described in detail in available sources, is understood to be present as a standard feature of an accredited US-curriculum school.
Sports and Recreation
Sports facilities are a notable strength of the campus. Students have access to an indoor air-conditioned gymnasium, both indoor and outdoor basketball courts, a football (soccer) field, a swimming pool, and facilities for badminton, tennis, volleyball, and table tennis. This range supports the school's competitive sports programme across multiple disciplines.
Dining
Three cafeterias serve the student body, with separate dining areas for younger and older students. A school lunch programme is available, with monthly fees of approximately 8,000 THB reported for nursery and lower primary students.
Boarding Facilities
RAIS operates a boarding programme, making it one of relatively few Bangkok international schools to offer residential provision. Boarding is available from approximately Grade 5, and the school publishes a dedicated Boarding School Calendar each academic year. Full details of boarding fees are distributed directly by the school rather than published online.
Safety and Security
The campus operates with CCTV surveillance and security personnel at the gates. A detailed transportation policy governs vehicle drop-off and pick-up procedures, with parents required to follow specific protocols to ensure student safety during arrival and departure. School van services operate on set routes across the Bangkok area, with pricing varying by distance.
Faith-Centred American Education: RAIS's Core Educational Philosophy
RAIS blends a WASC-accredited US curriculum with Seventh-day Adventist values, aiming to develop the whole child — academically, spiritually, and socially.
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A Distinctive Faith-Academic Foundation
Ramkhamhaeng Advent International School occupies a unique niche in Bangkok's international school landscape: it is simultaneously an academically rigorous US-curriculum institution and a distinctly Christian school rooted in the Seventh-day Adventist tradition. This dual identity shapes everything from curriculum design to extracurricular life.
WASC Accreditation and the American Curriculum
The backbone of RAIS's academic offering is its US-based curriculum, which has been accredited by the Western Association of Schools and Colleges (WASC) for well over a decade. WASC accreditation is a significant quality marker, placing RAIS alongside American schools worldwide in terms of curriculum rigour and institutional accountability. Students progress from Preschool through Grade 12 through a programme that covers the standard American K-12 subjects — English Language Arts, Mathematics, Sciences, Social Studies, Fine Arts, and Physical Education — with Advanced Placement (AP) courses available to high school students seeking college-level credits.
Whole-Person Development
The school's educational philosophy explicitly targets the development of the whole person. This is not merely rhetorical: it manifests in the inclusion of Bible study as a core subject at all grade levels, the integration of character education into daily school life, and the prominent role of the Pathfinders and Adventurers clubs — Adventist youth organisations akin to scouting that build leadership, community service, and life skills from elementary age onward.
Small Class Sizes and Individual Attention
With an average class size of 18 students (maximum 25), RAIS is able to deliver a more personalised learning experience than many larger Bangkok international schools. Teachers are expected to know their students well, and the guidance and counselling department — staffed by three counsellors — provides pastoral and academic support across the school.
Christian Values in a Multicultural Context
Despite its denominational roots, RAIS serves a student body drawn from approximately 19 nationalities, with around 71% Thai students and 29% international. This means the school's Christian ethos is delivered within a genuinely multicultural environment, and the school's EFL programme ensures that students whose English is not yet at grade level can access the full curriculum while developing their language skills.
Assessment and University Preparation
Beyond standard semester grading, RAIS offers AP examinations and MAP (Measures of Academic Progress) assessments to benchmark student learning. The school reports a 100% university progression rate for its graduates, reflecting both the academic preparation offered and the school's culture of aspiration.
From Adventist Mission to Accredited International School: The RAIS Story
Founded in 1999 under the Seventh-day Adventist denomination, RAIS has grown from a mission school into a multi-accredited Bangkok international institution with 800+ students.
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Origins in the Adventist Mission
Ramkhamhaeng Advent International School was established in 1999 by Udom Srikureja, operating under the umbrella of the Seventh-day Adventist Church's educational mission in Thailand. The Adventist Church has a long history of founding schools in Southeast Asia as part of its broader missionary and community-development work, and RAIS represents the Bangkok expression of that tradition.
Location and Community Context
The school is located in the Ramkhamhaeng area of Bangkok — a densely populated residential and commercial district in the eastern part of the city. This location placed it within reach of both the large Thai population of the area and the expatriate families who have long settled in Bangkok's eastern suburbs near the airport corridor. The proximity to Suvarnabhumi Airport (approximately one hour by road) makes the school accessible for families with international travel needs.
Growth and Accreditation Milestones
Over its first two decades, RAIS accumulated an impressive portfolio of accreditations:
- WASC Accreditation — held for over ten years, validating the quality of its American curriculum
- Thai Ministry of Education approval — granted by the Office of Private Education Commission (OPEC)
- ONESQA certification — Thailand's national educational quality assurance body
- ISAT membership — the International Schools Association of Thailand
- ISO 9001:2015 certification — quality management systems standard
- College Board AP authorization — enabling the school to offer and assess Advanced Placement courses
This multi-accreditation status distinguishes RAIS as one of the more formally quality-assured international schools in the Ramkhamhaeng corridor, even if it lacks the brand profile of some larger schools in central Bangkok.
Current Scale
As of around 2020, the school enrolled over 800 students from approximately 19 nationalities, served by three guidance counsellors and a teaching staff operating in small class environments. The school has added boarding facilities over time, with a published Boarding School calendar indicating residential provision for students from approximately Grade 5 upward.
About the School
- Established
- 1999
Frequently Asked Questions
What curriculum does Ramkhamhaeng Advent International School teach?
Ramkhamhaeng Advent International School follows the US Curriculum.
Where is Ramkhamhaeng Advent International School located?
Ramkhamhaeng Advent International School is located in Bangkok, Thailand.
What ages does Ramkhamhaeng Advent International School accept?
Ramkhamhaeng Advent International School accepts students from age 5 to 18.
Does Ramkhamhaeng Advent International School provide EAL/ESL support?
Yes, Ramkhamhaeng Advent International School provides EAL (English as an Additional Language) support.
Does Ramkhamhaeng Advent International School have a school bus?
Yes, Ramkhamhaeng Advent International School offers a school bus service. RAIS provides school van services for student transportation. All school vans have van assistants. Routes operate across Bangkok with distance-based pricing. Students must follow transportation rules and safety guidelines.
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Last updated: Jun 21, 2026
Sources: the school's official website, accreditation bodies (e.g. IBO, CIS), and public records.