School Profile

The Seisen Mission

Seisen International School, a Catholic International School, educates future world citizens to become men and women for others and with others, in the spirit of Jesus Christ.

Seisen’s mission is to provide a safe environment with a focus on the multi-faceted nature of community wellbeing. We seek to empower each student, through shared responsibility, creativity, and human interdependence, to develop their unique talents and to become competent and compassionate players in our global society, capable of empowering others and of bringing hope and peace to our ever-changing world.

Seisen International School (SIS) is a private, Catholic school for girls serving the international community in Tokyo.
The high school has 189 students out of a total K-12 population of 693 students representing over 50 nationalities. The aim of the high school program is to prepare young women for higher education through a comprehensive and challenging program of study.

The curriculum is taught in English and all students are required to speak only English within the school. SIS has high expectations of its students in terms of both character development and academic achievement.

The faculty, principally trained in the U.S., the U.K., Canada, and Australia, is broadly international. Small class size and close faculty-student relationships promote a supportive atmosphere. Our students participate in a wide range of extra-curricular activities including basketball, choir, cross-country, debate, drama, international science competition team, Model United Nations, newspaper, pottery, soccer, speech, tennis, track & field, volleyball and yearbook. As a member of the Kanto Plain Association, SIS competes in academics and sports, and participates in fine arts with other international and DoDD schools.

 IB Courses Offered for Class of 2025

Group 1: Language A

English A Literature 
(Mandatory)

Japanese A Language and Literature

Group 2: Language B or AB Initio

Japanese B, Japanese Ab Initio

French B

Spanish B , Spanish Ab Initio Self Taught Language A

Group 3: Individuals and Societies

Economics

Geography

History

Psychology

Group 4: Sciences

Biology

Chemistry

Environmental Systems &  Societies

Physics

Group 5: Mathematics

Mathematics: Analysis and Approaches

Mathematics: Applications and Interpretations

Group 6: The Arts

Music

Visual Arts

Grade Distribution

Seisen does not calculate rank in class.
Seisen does not calculate GPA.

In Grades 9 & 10, students follow the IB MYP framework. In Grades 11 & 12, students pursue pathways comprised of the SIS diploma, IBDP courses and the full IB Diploma program. Students are awarded grades on a criterion-based 1-7 scale according to the IB grading system.

Class of 2024 Destinations

Japan & Asia (39%)
UK & Europe (14%)
US & Canada (35%)

MATRICULATING STUDENTS

2020-2024 Graduates have attended 99 institutions around the world.

Students are encouraged to apply to a maximum of 10 institutions.

Accredited by: Council of International Schools and New England Association of Schools & Colleges

External Examinations: International Baccalaureate (IB) SAT Reasoning & Subject Tests PSAT/NMSQT, Japanese Kanji Aptitude Tests

School Head: Ms. Colette Rogers crogers@seisen.com

High School Principal: Mr. Alex Lee alee@seisen.com

High School Assistant Principal: Ms. Ema Alatini ealatini@seisen.com

College Advisor: Ms. Awing Lui alui@seisen.com

I.B. Coordinator: Ms. Veronique Maekawa vmaekawa@seisen.com

1-12-15 Yoga Setagaya-ku, Tokyo 158-0097
Japan Tel: 81-(0)3-3704-2661
Fax: 81-(0)3-3701-1033
Website: www.seisen.com
Email: info@seisen.com