Strengthening our Seisen bond, Spreading Seisen spirit

Seisen Former Students' Association was established in August 2010 to unite all former students of Seisen. Our key mission is to establish a global community of Seisen former students and provide a network for everyone to connect with each other, remain connected to Seisen, and keep updated on the school's current news and events. Our association is 5,000 former students strong. Ninety-five percent of our former students live outside Japan. We work together from across the globe to strengthen our Seisen bond, spread Seisen spirit, and make our association as great as it can be.


  • President Mary Chu (‘81)
  • Vice President Nozomi Shinoda ('76)
  • Secretary Marie Gaardahl ('10)
  • Treasurer Kazue Yoshimura ('80)

Contact us at

If you are a former student of Seisen International School, please register.

Alumni News

Class of 1987 30th Reunion in Tokyo, Japan
Mary Chu

Class of 1987 will be celebrating their 30th Reunion on July 14 and July 15, 2017 in Tokyo.  It will be a joint reunion with St. Mary's and ISSH.  July 14 event will be open to Class of '85-'89 and July 15 joint dinner for the '87 alumni only.  For more information, please contact  Congratulations, Class of 1987!

Alumni Booth at Festival of Nations 2017
Mary Chu

Please join the alumni from all over the world at our Alumni Booth on Saturday, October 7, 2017!  Details to follow.

Graduation 2017 and Seisen Spirit Award
Mary Chu

Seisen Former Students' Association welcomed Class of 2017 and presented its sixth Seisen Spirit Award at High School Graduation on Sunday, May 28, 2017.  This year's Seisen Spirit Award recipient is Maya Yamagata '17.  Maya was recognized for her outstanding Seisen spirit and pride.  Congratulations, Class of 2017 and Maya Yamagata!  Welcome to your alumni association!

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