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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), offers the American curriculum, IB, athletics, singing and instrumental music.

  • St. Mary's International School
    1-16-19 Seta
    Tokyo 158-8668
  • T +81 3 3709 3411
  • 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 am - 3:10 pm (elementary); 8:25 am - 3:15 pm (secondary)
  • Fee Currency: Japanese Yen (JPY)
  • Fee Details: Annual Tuition Fees: Pre-K - grade 12: 2,300,000
  • Fee Extras: Registration fee: 300,000 Building maintenance (annual): 100,000 Building development (once): 600,000 Bus: 300,000 (both ways); 170,000 (one way) ESL: 100,000
  • 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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