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Seisen International School Japan 2 - 18
Seisen International School
120 pupils, ages 2-5 | Mixed | Day


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Our View

Catholic Seisen International School (SIS) was founded after the Second World War when US Air Force families requested an education for their children. Set up by the Handmaids of Sacred Heart of Jesus, it was the first all-girls school in Asia to offer the IB Diploma Programme (IBDP).


The campus houses the whole school, from kindergarten to Grade 12 (it’s girls only from Grade 1). The kindergarten is in a low-rise two-level building comprising classrooms and a kindergarten hall for activities, music and dance. The kindergarten playground has fun playground structures which include a sandpit and a tunnel. There is also a chapel on site.

Yoga station is a 10-minute walk away and is served by the Tōkyū Den-en-toshi Line; the closest bus stop to the campus is Shingakuen-mae.


Ms Colette Rogers is the first layperson head and she has been at the school (in various roles) since 2015. We found her to be measured and focused, although we hear that she is game for a giggle: it is rumoured that she dressed up as a large Minion to help out with gate duty and no one realised it was her.


Children must be from an expat family moving to Japan with one parent who is able to speak and write fluent English; from a bicultural family where one parent speaks and writes fluent English; fluent in English; Japanese pupils who have spent two years abroad in an English-medium school; local Japanese children who are transferring from an international school and need minimum support; or an international pupil moving from another international school in Japan.


The co-ed kindergarten offers a Montessori-style education under the IB Primary Years Programme (PYP) curriculum.

School community

Around 25 per cent of pupils are Catholic, but all faith denominations are welcome. As you’d expect though, religion is an important part of the school and children have the opportunity to attend Mass once or twice a month (whole-school Mass is held in the gym; the chapel is more for quiet reflection and individual religious classes). There are nurses on site as well as counsellors and within the parent/student handbook there is a key section on safeguarding. 

The school supports significant events in the calendar that celebrate women. Inclusion is high on the list with a newly formed group I-DEA (inclusion, diversity, equity and anti-racism) tackling issues head-on.

A hot buffet lunch is produced on site by Cezars Kitchen, SIS’s chosen catering company. Children can also bring lunch in from home. 

Although on paper, nationalities are split evenly it seems to be weighted in favour of Japanese pupils (although they may be mixed nationality). There is an active Seisen Parents Association (SPA) which organises events such as the spring lunch and welcome coffee morning.

And finally....

This is a small, nurturing school that makes the best of the space and has spiritual studies at its heart.
  • Destination Schools

    Girls stay on and move up the school, while boys move on to a number of other local schools.
  • Fees

    From 1,150,000.00 Yens

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  • Transport Links

    Nearest international airport: Tokyo Haneda International Airport


12-15 Yoga 1-chome, Setagaya-ku, Tokyo, 158-0097

(+81) 3 3704 2661



Open Days


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