Skip to main content

Private, non-profit Saint Mary’s International School (West Tokyo), unabashed faith (Catholic+ 60 nationalities) and boys school (950 ages 4-18), offers the American curriculum, IB, athletics, singing and instrumental music.

  • St. Mary's International School (Tokyo)
    1-16-19 Seta
    Tokyo 158-8668
  • T +81 (0)3 3709 3411
  • F +81 (0)3 3707 1950
  • E [email protected]
  • W
  • Lower School Ages: 4-11
  • Lower School Sexes: Boys
  • Lower School Numbers: 500 boys
  • Middle School Ages: 12-14
  • Middle School Sexes: Boys
  • Middle School Numbers: 150 boys
  • Senior School Ages: 14-18
  • Senior School Sexes: Boys
  • Senior School Numbers: 250 boys
  • Teaching Language: English
  • SEN: No SEN
  • Boarding: Not available
  • Uniform: Yes
  • School Hours: 8:40-3:10 (Elementary)8:25-3:15 (Secondary School)
  • Fee Currency: Yen
  • Fee Details: Annual Tuition Pre-First - Grade 12: Yen 2,300,000 ESL (one time fee): Yen 100,000
  • Fee Extras: Registration: Yen 300,000; Building Maintenance (annual): Yen 100,000; Building Development (one time for new students): Yen 600,000 School Bus (one way): Yen 170,000 School Bus (both ways): Yen 300,000
  • Religion: Catholic
  • Memberships: Kanto Plain Association of Secondary School Principals (KPASSP), East Asia Regional Council of Overseas Schools (EARCOS), Japan Council of International Schools (JCIS)
  • State/Independent: Independent: private non-profit


  • American High School Diploma (College Preparatory)
  • International Baccalaureate (Diploma)


  • Authorised by International Baccalaureate Organization (not to be confused as an inspection or accreditation agency)
  • Council of International Schools (CIS)
  • Tokyo Metropolitan Government
  • Western Association of Schools and Colleges (WASC)

No school can pay to be in
The Good Schools Guide International. Period.

To find out what's really inside the schools and how to choose the best one for your child!  

Only a subscription gives you access to

☑ 55 cities
☑ 734 schools listed - the good, the bad, the ghastly
☑ 213 schools reviewed - only the good
☑ Local knowledge of schools at your fingertips

The Good Schools Guide International - worth moving home for.

GSG Blog >

The Good Schools Guide newsletter

The Good Schools Guide Newsletter

Educational insight in your inbox. Sign up for our popular newsletters.

The Good Schools Guide manifesto for parents