NIST International School
โรงเรียนนานาชาตินิสท์
฿962K – ฿1.43M
Including Admission Fees and Annual Tuition
IB
Curriculum
Global Citizen Diploma, IB Diploma...
3–18
Age
Kindergarten › High School
English
Language
1,820
Students
77 nationalities
75% foreigners
NIST is the school that comes up in almost every conversation about international education in Bangkok, and for good reason. Founded in 1992 with UN support, it was Thailand's first full IB World School and remains the only school in the city offering the complete IB Continuum (PYP, MYP, Diploma) on a non-profit basis. Around 1,820 students from 77+ nationalities, with a deliberate cap ensuring no single nationality exceeds 30% of the student body; the most genuinely diverse community of any school in Bangkok.
The campus is in the most central location of any tier-one school in the city (Asok BTS). None of that comes without trade-offs. Admissions are competitive, with waitlists at most year levels and a formal assessment at secondary. First-year costs, including the ฿575,000 refundable Campus Development Fee, typically reach ฿1.5M-฿2.0M, the highest all-in entry cost in this comparison. For families where IB, location, and genuine diversity are the filters, there is no close equivalent in Bangkok.
NIST Fees
Admission & Enrollment
฿334,000
one-time fees
Annual Tuition
฿628,200 – ฿1,094,500
depends on year group
Total 1st year
Including Admission Fees and Annual Tuition
฿962,200 – ฿1,428,500
Admission & Enrollment
฿334,000
one-time fees
Annual Tuition
฿628,200 – ฿1,094,500
depends on year group
Total 1st year
฿962,200 – ฿1,428,500
Including Admission Fees and Annual Tuition
Tuition Fees (2025–2026)
On this page
Key Facts
IB
Curriculum
English
Language
1,820
Students
77+
Nationalities
75%
Foreigners
08:00 – 15:25
School Day
21
Avg. Class Size
24
Max Class Size
1992
Founded
For Parents
NIST International School is Bangkok's first and only full, not-for-profit IB World School, established in 1992 with the support and guidance of the United Nations.
Located on Sukhumvit Soi 15 in the Watthana district, NIST offers the complete IB Continuum (PYP, MYP, and Diploma Programme) to over 1,800 students aged 3 to 18, representing more than 77 nationalities.
Governed by a parent-elected foundation, the school reinvests all revenue into operations and campus improvements. NIST is Thailand's most diverse international school community, and its graduates consistently achieve IB scores well above global averages, gaining entry to leading universities worldwide.
The school's holistic learning programme integrates academics, wellbeing, service, expeditions, and over 300 extracurricular activities.
Facilities
Accreditations & Memberships
Address & Contacts
36 Sukhumvit Soi 15, Sukhumvit Road
Khlong Toei Nuea, Watthana · Bangkok 10110
General Inquiries
NIST Fees
Admission & Enrollment
฿334,000
one-time fees
Annual Tuition
฿628,200 – ฿1,094,500
depends on year group
Total 1st year
Including Admission Fees and Annual Tuition
฿962,200 – ฿1,428,500
Admission & Enrollment
฿334,000
one-time fees
Annual Tuition
฿628,200 – ฿1,094,500
depends on year group
Total 1st year
฿962,200 – ฿1,428,500
Including Admission Fees and Annual Tuition
Tuition Fees (2025–2026)
Key Facts
IB
Curriculum
English
Language
1,820
Students
77+
Nationalities
75%
Foreigners
08:00 – 15:25
School Day
21
Avg. Class Size
24
Max Class Size
1992
Founded
For Parents
NIST International School is Bangkok's first and only full, not-for-profit IB World School, established in 1992 with the support and guidance of the United Nations.
Located on Sukhumvit Soi 15 in the Watthana district, NIST offers the complete IB Continuum (PYP, MYP, and Diploma Programme) to over 1,800 students aged 3 to 18, representing more than 77 nationalities.
Governed by a parent-elected foundation, the school reinvests all revenue into operations and campus improvements. NIST is Thailand's most diverse international school community, and its graduates consistently achieve IB scores well above global averages, gaining entry to leading universities worldwide.
The school's holistic learning programme integrates academics, wellbeing, service, expeditions, and over 300 extracurricular activities.
Facilities
Accreditations & Memberships
Address & Contacts
36 Sukhumvit Soi 15, Sukhumvit Road
Khlong Toei Nuea, Watthana · Bangkok 10110
General Inquiries