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

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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.




CISWestern AssociatesIB