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Our History

Thirty years ago, only a small handful of international schools existed in Thailand, each connected to a single national curriculum. NIST emerged as an option for parents wanting their children to experience and enjoy learning in a diverse, multicultural and inclusive international school. NIST was—and still is—unique.

Working hand-in-hand with members of the United Nations, the first parents, students and teachers envisioned a school free from any one national curriculum programme. They imagined a learning community dedicated to an international education to develop global citizens. When NIST opened its gates on the morning of 13 August 1992, the first 502 students made that dream a reality. 

In 1992 NIST became the first full International Baccalaureate (IB) World School in Thailand, and by 1999 was offering all three IB programmes. Focused on inquiry, exploration, reflection and—most significantly—the belief that learning is at the core of the human experience, the IB philosophy aligned with the shared vision of our growing community.

The Foundation

Spurred through the efforts of members of the United Nations, NIST International School opened on 13 August 1992.

A growing community

In 2002, our campus began to transform, opening the Early Years Centre and Sports Complex in 2003, and a new cafeteria in 2004.

Future plans

In 2023 NIST launched a 5-year strategic improvement plan to meet the school community’s future needs in terms of learning spaces, health and safety, security, and creating greater efficiencies.

Today, our internationalism is not only expressed in our curriculum but also through our diverse community. Students from more than 75 different nationalities learn about themselves, their cultures and the cultures of others while always honouring the traditions of our host country, Thailand. Our teachers are as diverse as our students, with most having experienced teaching in an average of three other countries before joining NIST. 

Over the past three decades, the school has matured and developed a reputation for excellence, clearly demonstrated in our professionalism and expressed through our curriculum: The NIST Learning Programme. We recognise the critical role that our teachers and support staff play in the school’s ongoing success, and we are constantly seeking ways to improve everything we do. NIST aims to be a preeminent school that develops global citizens who flourish and make a positive difference in the world.


NIST is a vibrant community made up of 500+ passionate and caring educators, experienced administrators, and dedicated operational staff who work as a team to provide a world-class education for our students.

Our Campus

Nestled in the heart of one of Bangkok’s busiest business districts, the NIST International School campus is located on Sukhumvit Soi 15, minutes from Asok BTS skytrain and Sukhumvit MRT subway stations. Our 25-rai campus encompasses ten buildings that house over 90 classrooms and state-of-the-art facilities.

Academic Performance

Each year our students excel in IB exams, posting scores well above the global averages, and often leading other schools in the region.