Welcome to St. Mary’s International School

Summer School registrations are closed

Invoices will be mailed on May 24, and payments are due on May 31.

Summer School begins June 5 and will continue though June 23.

Raffle Winners

See the list of Raffle Winners here.

Upcoming events

  • HS Track Far East Tournament at Yokota, May 22-24
  • Spring Elementary Concert, May 24
  • Fine Arts Awards Banquet, May 25
  • High School Graduation, May 27

Top 10 reasons to choose St. Mary’s

As a part of our 60th anniversary celebrations, we’ve compiled this List of the Top 10 reasons parents choose St. Mary's International School.

Educating Boys: a series of articles on tailoring education for an all-boys school

Welcome to St. Mary’s International School in Tokyo

St. Mary's International School has been providing quality education to the international community in the Tokyo area for over 60 years. Now in our second half-century, we have about 900 boys from approximately 50 different countries. This international student body, rich in cultural and religious diversity, contributes greatly to the unique educational experience we offer. More ...

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