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Seisen Crest

A Catholic Kindergarten to Grade 12 IB international school in Tokyo

Preparing global leaders, critical thinkers and compassionate women for tomorrow.

Our Stories

Learning to Love, Loving to Learn since 1962

Lim Family

Being part of the Seisen Family means being open to all nationalities, ethnicities, and backgrounds. 

With faculty and students from around the globe, Seisen helps shape our girls' understanding and perception of the world.  The opportunity to attend Seisen allows them to experience things they wouldn't otherwise have, and that's something we are grateful for.  It has taught my daughters to conserve water, not waste things unnecessarily, and be good global stewards of our environment.  In Seisen, we have become part of a wonderful supportive community that prepares our daughters for a bright future. 

The choice to send our girls to Seisen has been the best one we could have made and we are confident they will be prepared for whatever lies ahead in their future.

 

 

Iwase Family

What being a Seisen Family means to us!

Seisen isn't just about our children's education, it's about immersing them in a warm, welcoming, and diverse global family. Being part of this Seisen Family means becoming a valued member of this vibrant community. Students’ families and the school partner to co-create a nurturing learning environment for our children. There's constant open dialogue, where everyone's voice is heard and valued, regardless of background. It's not a one-sided relationship – it's casual, friendly, and even fun with a good sense of humor!

We feel integral to the school's journey to see our children become compassionate global citizens in this multicultural world.

 

 

Mary Chu, Seisen Former Students's Association President

“Every memory of Seisen is wonderful which includes the Sisters, my friends, teachers, staff, classes, participating in extracurricular activities, and being involved at school.  What they all have in common is that as a child and student, I knew that I belonged at Seisen.  As students, we always accepted each other even for our differences in culture, religion, and opinions.  We didn’t judge and were never judged.  I’m grateful to my parents for choosing Seisen for me since Seisen is a big part of who I am today."

View more Alumni Profiles

Facts & Figures

The Seisen Story

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50+

Nationalities represented by Seisen Students

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3

International Baccalaureate Programmes Offered

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26

Nationalities represented by Seisen Faculty

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22

Countries with Sister Schools founded by the Handmaids of the Sacred Heart of Jesus

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7:1

Student to Faculty Ratio

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3/3

Fall Sports Far East Championships won in 2019 (Tennis, Cross Country, Volleyball)

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1962

The Handmaids of the Sacred Heart of Jesus operated Kindergarten is relocated from Yoyogi to Gotanda.

1972

Move to new Setagaya campus in Yoga.

1974

Sister Asuncion Lecubarri, the new principal, awards diplomas to 18 students. Seisen's first graduating class.

1986

First girls school in Asia to offer the International Baccalaureate Diploma Program.

2007

International Baccalaureate Organization authorized Seisen to start the Primary Years Program. 

2012

Seisen International School celebrates it's 50th Anniversary.

2019

With the addition of the Middle Years Program Seisen becomes an IB Continuum School.

2022

Celebration of our Diamond Anniversary.

Seiren International School in Tokyo logo in white

The Seisen Experience

Programs & Features

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News & Events

The latest school updates

Seisen Cross Country Steps Up for TELL

Every year Seisen Phoenix HS and MS Cross-Country teams commit to participating in the TELL Step-Up Challenge (a month-long, nationwide effort to #StartTheConversation.

Drummer Takes Skills to the Next Level

Mei Yamada (Class of 2028): "I don't know how we put the concert together in two days, but the performance at the Gala Concert was even better than the rehearsals."

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