The 9 Best International Schools in Tokyo (2026)

Updated November 2026 · 9 picks

The best international schools in Tokyo in 2026 include the American School in Japan in Chofu, the British School in Tokyo, Nishimachi International School in Azabu, St. Mary's International School for boys, Seisen and the International School of the Sacred Heart for girls, plus Tokyo International School, Aoba-Japan and K. International School Tokyo for the IB.

Tokyo's international schools fall into a few groups: American-style college preparatory schools, a British National Curriculum school, and a growing set of International Baccalaureate (IB) schools. Some teach single-sex classes, some are faith-based, and some offer Japanese language as a core subject. Match the curriculum to where your child may go next, then compare commutes, because campuses are spread from Minato and Setagaya to Chofu.

This guide is not a ranking by results or fees. Read each school's own admissions page for entry ages, assessments and current deadlines before you apply.

1. The American School in Japan — Chofu

American-style college preparatory school from early learning through Grade 12.

Specialty American-style college preparatory, Early Learning to Grade 12Best for Families wanting a US-style program in western Tokyo

The American School in Japan (ASIJ) says it offers an American-style college preparatory curriculum for international families in Tokyo. Its site lists an Early Learning Center, a Kinder to 5th Grade program, a 6th to 8th Grade program and a 9th to 12th Grade program on its Chofu campus.

The school says its legal status is a Gakko Hojin, and its About page quotes a WASC accreditation team. It says its history spans more than 100 years.

Good to know: Read the eligibility and visit pages under Admissions before you start an application.

1-1-1 Nomizu, Chofu-shi, Tokyo 182-0031

Google Maps Website

2. The British School in Tokyo — Azabudai

National Curriculum for England school for ages 3 to 18 with the IB Diploma.

Specialty English National Curriculum with IB Diploma, ages 3-18Best for Families wanting a British-style school with an IB option

The British School in Tokyo says it provides a curriculum based on the National Curriculum for England, tailored for international students in Japan aged 3 to 18. Its site shows an Early Years Foundation Stage, primary school, secondary years and an IB World School Diploma pathway.

The Azabudai campus serves Nursery to Year 6, and the Showa Women's University campus in Setagaya serves Year 7 to Year 13, as listed on its site.

Good to know: The school runs separate primary and secondary campuses, so check the commute for each stage.

1-3-3 Azabudai, Minato-ku, Tokyo, Japan

Google Maps Website

3. Nishimachi International School — Moto-Azabu

Kindergarten to Grade 9 school with Japanese language and culture for all students.

Specialty Kindergarten to Grade 9, Japanese language and cultureBest for Families wanting a school with strong Japanese language study

Nishimachi International School says it was established in 1949 and offers a program from kindergarten to Grade 9, with a middle school at Grades 6 to 9. Its site lists Japanese classes for all students and a Japanese Language and Culture Program.

Its Guiding Statements page lists accreditations and memberships including the Council of International Schools, the Western Association of Schools and Colleges and the East Asia Regional Council of Schools.

Good to know: The important dates page lists application windows for kindergarten and Grades 1 to 9.

2-14-7 Moto Azabu, Minato-ku, Tokyo 106-0046

Google Maps Website

4. St. Mary's International School — Seta

All-boys school from kindergarten to Grade 12 with the IB.

Specialty IB, kindergarten to Grade 12, boys onlyBest for Families seeking an all-boys international school

St. Mary's International School says it is a boys school, focused solely on the needs of boys, and that it was founded in 1954 and moved to its current location in Setagaya in 1971. Its site lists the IB Diploma Programme and a program from kindergarten to Grade 12.

The school says it is fully accredited by the Western Association of Schools and Colleges (WASC) and the Council of International Schools (CIS).

Good to know: Admissions pages list separate entry steps for the youngest grade and Grade 1.

1-6-19 Seta, Setagaya-ku, Tokyo 158-0095

Google Maps Website

5. Seisen International School — Yoga

Catholic IB school with a girls program from elementary to high school.

Specialty IB, Catholic, kindergarten to Grade 12Best for Families wanting a girls IB school (co-ed kindergarten)

Seisen International School describes itself as a Catholic kindergarten to Grade 12 IB school, with a kindergarten for ages 2 to 5. It says it was the first all-girls school in Japan to offer the IB Diploma, in 1985, and that it educates girls in elementary through high school.

Its site shows a CIS accreditation badge and lists NEASC and the Japan Council of International Schools. The school welcomes students of all faiths.

Good to know: Ask about the Catholic identity and religion classes if your family follows another faith.

12-15 Yoga 1-chome, Setagaya-ku, Tokyo 158-0097

Google Maps Website

6. International School of the Sacred Heart — Hiroo

Girls school from Pre-K to Grade 12 in Hiroo, accredited by CIS and WASC.

Specialty Girls, Pre-K to Grade 12, Sacred Heart traditionBest for Families seeking an English-language girls school in central Tokyo

The International School of the Sacred Heart says it was founded in 1908 and offers an English-speaking girls education from Pre-K to Grade 12. Its site lists Advanced Placement Visual Arts courses and an all-girls program in the Sacred Heart tradition.

The Head of School's welcome says the school is doubly accredited, and lists CIS and WASC.

Good to know: Read the Sacred Heart Goals and Criteria on its site to see whether the approach suits your family.

4-3-1 Hiroo, Shibuya-ku, Tokyo 150-0012

Google Maps Website

7. Tokyo International School — Mita

IB World School from kindergarten to Grade 12 with a mix of nationalities.

Specialty IB (PYP, MYP, DP), kindergarten to Grade 12Best for Families wanting a smaller IB school with many nationalities

Tokyo International School describes itself as an IB World School for kindergarten to Grade 12, with PYP, MYP and DP programmes and a nonprofit structure. Its site says it is accredited with the IB, CIS and NEASC.

The site shows a new address at Takanawa Gateway City Residence in Mita. Its admissions page publishes an August 31 birthday cut-off for grade placement.

Good to know: Kindergarten applicants are invited to informal screening sessions in January and February.

Takanawa Gateway City Residence, 3-15-2 Mita, Minato-ku, Tokyo 108-0073

Google Maps Website

8. Aoba-Japan International School — Hikarigaoka

IB continuum school with campuses in Meguro, Nerima and Bunkyo.

Specialty IB continuum, K2 to Grade 12 across campusesBest for Families wanting the IB in a multi-campus school

Aoba-Japan International School describes itself as an IB Continuum World School. Its site lists a Meguro campus for K2 to K5, a Hikarigaoka campus for K3 to Grade 9 and a Bunkyo campus for Grades 10 to 12, plus an online campus.

The site mentions the Council of International Schools (CIS). Confirm which campus your child's grade attends and check the commute.

Good to know: Different grades sit on different campuses, so ask which one applies before you tour.

7-5-1 Hikarigaoka, Nerima-ku, Tokyo 179-0072

Google Maps Website

9. K. International School Tokyo — Shirakawa

IB school with PYP, IGCSE and IB Diploma pathways in Koto ward.

Specialty IB PYP, IGCSE and IB DiplomaBest for Families wanting a bay-area IB school

K. International School Tokyo's site lists a PYP program for K1 to Grade 5, an IGCSE program for Grades 9 and 10 and an IB Diploma, with a class of 2025 average Diploma score published. The school says it is authorized and accredited by several organizations and shows a CIS logo on its About page.

Read the About page for the full list of affiliations and accreditations.

Good to know: Its school profile page lists the campus details and contact numbers.

1-5-15 Shirakawa, Koto-ku, Tokyo 135-0021

Google Maps Website

Frequently asked questions

How do the American, British and IB curricula differ in Tokyo?

American-style schools such as the American School in Japan offer a college preparatory program. The British School in Tokyo builds on the National Curriculum for England and adds the IB Diploma in the senior years. IB schools such as Tokyo International School, Aoba-Japan, Seisen and K. International School Tokyo use IB programmes, in some cases from kindergarten. Choose by where your child may continue, since each school's own site sets out its exact pathway.

What is the difference between Article 1 schools and miscellaneous schools?

MEXT describes Article 1 schools as schools operating under Article 1 of Japan's School Education Act. It also says that most schools for foreign students are miscellaneous schools or unauthorized facilities, so most international schools are outside that category. Ask a school how it is classified and what that means for your child, for example for entry to Japanese universities, and confirm the details with MEXT or the university.

Can foreign children attend Japanese public schools?

Yes. MEXT's Guide for foreign students to start school says public elementary and junior high schools accept foreign children free of charge if they wish to enter them, with the same education as Japanese students. Families register at their local municipal office. Children usually enter elementary school in the April after their sixth birthday, and the guide is available on the MEXT site.

When should I apply to an international school in Tokyo?

Apply as early as you can, since many schools have limited places in entry grades, and some offer rolling admission when space is available. Each school sets its own deadlines, assessments and age cut-offs, and these change each year. Tokyo International School, for example, publishes an August 31 birthday cut-off, and Nishimachi lists dates for kindergarten and Grade 1 to 9 applications on its important dates page.

How much are international school fees in Tokyo?

Fees vary widely by school and grade and change every year. This guide does not list or compare them. Check each school's own tuition and fees page for current figures, and ask what is charged on top of tuition, such as application, enrollment, bus and building fees.