St. Marys International School

As a Catholic international all-boys school, St. Mary’s focuses on the intellectual, physical, emotional, and social development of the whole child. The school aims to create compassionate global citizens by teaching and nurturing values, fostering a spirit of cooperation, and finding the intersection between individual student needs and the needs of the world.

The school offers a comprehensive curriculum from kindergarten (RP) through grade 12, utilizing an Understanding by Design approach and a standards-based framework. High school students participate in the International Baccalaureate (IB) Diploma Programme, a globally recognized pre-university course of study. The academic program is supported by a curriculum review cycle to ensure horizontal and vertical alignment across all grade levels.

St. Mary’s is fully accredited by the Western Association of Schools and Colleges (WASC) and the Council of International Schools (CIS). Graduates are accepted into universities worldwide, and the school's rigorous, college-preparatory curriculum is designed to provide students with a competitive edge for university studies and future careers.

The school provides student support services and counseling to nurture the emotional and social development of each student. These services are integrated into the school's mission to support student well-being and individual achievement.

St. Mary’s admits students from the international community based on a review of previous school transcripts, standardized test results, a screening test, and a personal interview with the student and parents. Applications are accepted throughout the year, and the school welcomes inquiries and campus visits from prospective families. Admission is granted without regard to race, creed, or national origin.

The school operates on an academic calendar that typically runs from August through the following summer. Detailed schedules for the 2025-26 and 2026-27 academic years are available through the school's official calendar portal.

Located in the Setagaya ward of Tokyo, the campus features well-equipped classrooms and first-rate athletic facilities. The school provides dedicated learning spaces, including libraries for the elementary school and learning commons for the middle and high school divisions. On-campus services include a cafeteria catered by Cezars Kitchen and a school bus service.

The school provides a wide range of extracurricular programs in athletics, fine arts, and the performing arts. Students are strongly encouraged to participate in various sports activities, and the school maintains active programs such as the St. Mary’s Bands and visual arts. These activities are designed to help students explore their passions and develop character, resilience, and collaboration.