RIS Ratchapruek is committed to excellence through creativity and inspiration. We strive to develop balanced, successful, and compassionate thinkers who seek to make a difference in the world around them.

RIS Ratchapruek believes that students learn best in an environment where classes and programs are structured around an intellectually stimulating curriculum that is suited to each student’s ability, achievement, motivation, and interest.

Ruamrudee International School Ratchapruek is now welcoming applications for students age 2 to age 16. Please see the grade levels below to determine the grade level appropriate for your child. RISR reserves the right to place a child in the grade level determined most appropriate during the admissions process. Families who enroll agree to participate in any recommended student support services, such as English Language Development (ELD) or Learning Support (LS).


Pre-K 2 - 2 years

Pre-K 3 - 3 years

Pre-K 4 - 4 years

Elementary School

Kindergarten - 5 years

Grade 1 - 6 years

Grade 2 - 7 years

Grade 3 - 8 years

Grade 4 - 9 years

Grade 5 - 10 years

Middle School

Grade 6 - 11 years

Grade 7 - 12 years

Grade 8 - 13 years

High School

Grade 9 - 14 years

Grade 10 - 15 years*

Grade 11 - 16 years**

*Enrolling 2023-24

**Enrolling 2024-25

Application process

Who can apply?

RIS Ratchapruek welcomes applications from families of all nationalities, religions, and compositions. RISR serves Thai students as well as foreign nationals. RISR does not implement quotas to limit enrollment by any nationality. RISR families believe in creating a caring and inclusive school community, a strong partnership between home and school, and an inquiry-based and individualized approach to education.

RIS Ratchapruek currently serves students in Pre-K 2 to Grade 10. Please see the Student & Parent Handbook to ensure a great fit.

What curriculum does RIS Ratchapruek follow?

RIS follows the American curriculum, which is standards-based. Standards are skills and concept knowledge aligned for the stage of development that corresponds to each grade level.

From one grade level to another, students build a progression of standards that deepens their understanding of each content area and enhances their skills. Teachers are highly skilled in using ongoing assessments to understand what concepts and skills students have mastered and what they are ready to learn next. This ensures a rigorous approach for students through differentiation.

Standards include the Washington, D.C. Early Childhood Standards and American Education Reaches Out (AERO) standards for our core subject areas of English language, mathematics, and social studies, Next Generation Science Standards (NGSS) for science and ISTE for integrated technology, and standards specific to specialist subjects.

What universities will my child be qualified to attend?

RIS Ratchapruek is fully recognized by OPEC and the Ministry of Education in Thailand, and currently has candidacy status for full accreditation from the Western Association of Schools and Colleges (WASC) in the United States. Students who graduate from RIS are able to apply directly to medical and dental programs or International Programs at universities in Thailand. They are also able to apply directly to universities in English speaking countries or throughout Asia.

All students who graduate from RISR will complete the American high school diploma. Students will have their choice of advanced coursework or additional diploma options, beginning with Advanced Placement (AP) classes in high school. RIS is one of the only schools in Thailand to offer Advanced Placement (AP) classes as well as the full International Baccelaureate Diploma Programme (IB DP).

How do we apply?

Please complete an online application or email for assistance.

The school year begins in August and ends the following June each year. RIS Ratchapruek has rolling admission.

The school fees, application, and calendar for the 2023-2024 school year are available by clicking the buttons below.

Parent Student Handbook 2023-2024

why RIS Ratchapruek?


Our faculty, staff, and families are committed to creating an environment of care. Each child is seen as an individual and nurtured to grow and achieve according to our Principles of Phoenix, or "Head, Hands, and Heart," becoming balanced and successful individuals who can are equipped to become leaders.


Our school is a safe place for all to set goals, take risks, and grow through inquiry. Our approach to Student Support ensures that the academic, physical and social needs of students are met in an inclusive community where knowledge, skills, and values are nurtured together.


Students become leaders who show compassion through action, inspired by Ruamrudee International School's mission and vision and the United Nations Sustainable Development Goals (SDGs).


RISR's connections with our Partners for the Future in Nonthaburi, Bangkok, throughout Thailand, and beyond ensure that our students can connect their learning to real organizations, companies, and opportunities to create change in Thailand and the world.

To assist in the enrollment process, RISR will collect and process personal data. Please see our Personal Data Policy for details.