Ruamrudee International School, Ratchapruek Campus serves students in PreK2 to Grade 10. Following the American curriculum and in the tradition of Ruamrudee International School, founded in 1957, RISR builds a culture of care and inquiry that supports holistic development and individual achievement for each child.

Ruamrudee is Thai for “union of hearts,” which perfectly captures the school’s philosophy of welcoming all children into an environment of care and compassion. RIS embraces a progressive, innovative approach to education, emphasizing global citizenship and character development in a multicultural community.

OUR Vision

Ruamrudee International School will be known globally as a hallmark of international education, and physical well-being, while fostering compassion through action and shaping the lives of tomorrow's leaders.

OUR mission

Ruamrudee International School is a Catholic school that provides an interfaith, inclusive, and academically rigorous education for students to be balanced, successful, and compassionate individuals.

OUR schoolwide learner outcomes

Ruamrudee International School believes in a holistic approach to development for each child. Our Principles of Phoenix encapsulate our philosophy of growth in "head, hands, and heart." The PoPs guide our students' personal goal setting and contribute to a schoolwide culture of growth.


Ruamrudee International School was founded as Ruamrudee School in 1957. RIS has thousands of alumni in Thailand and around the world who continue to live by the school's motto, "Ad Astra," in their personal and professional lives. RIS Ratchapruek serves students from 15 different countries, who live in Nonthaburi, Bangkok, and the surrounding communities. Our campus currently serves students in PreK to Grade 9, with Grade 11 opening in August, 2024.


RIS Ratchapruek opened in August 2019 in Bang Kruai, Nonthaburi. Our purpose-built campus is near Ratchapruek Road and approximately 20 kilometers north of Bangkok and west of the Chao Praya River.

Our Secondary Building is currently under construction. The Secondary Building will be the home of our middle school and high school programs.



Ruamrudee International School Ratchapruek Campus

999 Moo 4 Bang Kruai-Sai Noi Road, Bang Krang

Nonthaburi, Nonthaburi 11000 Thailand

โรงเรียนร่วมฤดีวิเทศศึกษา ราชพฤกษ์ แคมปัส

999 หมู่ 4 ถนนบางกรวย–ไทรน้อย

ตำบล บางกร่าง อำเภอ เมืองนนทบุรี

จังหวัด นนทบุรี 11000 

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