Our School

Elementary School

Grades K-5

We give our students the opportunity to acquire a high-quality education and enjoy new experiences in an international setting.

Middle School

Grades 6-8

The quality of instruction in the classroom is the single most important factor related to student achievement.

High School

Grades 9-12

We offer many academic, extra-curricular, and special-interest experiences—all designed to serve adolescent boys.

News & Events

E.S. Book Bowl

E.S. had a fantastic Book Bowl yesterday! The Kahoot! competition was very close. The top 3 were: 1st: Team 1 AlienZ (34,135 points) 2nd: Team 8 Secret Readers (31,643 points) 3rd: Team 9 Technical Readers (30,329 points) Congratulations & thank you to our teacher/staff helpers for their time!

Read Full Article about E.S. Book Bowl
Futakotamagawa station is 12 minutes from Shibuya station


A School with a Heart

At St. Mary's, every child finds a place:
each and every one is taken care of,
listened to, loved, and motivated.

Nurturing, Challenging and Connecting all Hearts and Minds.

CISWestern AssociatesIB