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

  • Mailing address:
    St. Mary's International School (Tokyo)
    6 - 19, Seta
  • T 81 03-3709 3411
  • F 81 03-3707 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
  • Total School Numbers: 900 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: Yen2,040,000 ESL (one time fee): Yen100,000
  • Fee Extras: Registration: Yen300,000; Building Development (annual): Yen100,000; Building Maintenance (one time for new students): Yen500,000 School Bus (one way): Yen170,000 School Bus (both ways): Yen300,000 IB (per exam): Yen20,000
  • 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)

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