Welcome to One World International School Osaka (OWIS Osaka), A Fast-Growing K–12 International School In Osaka

Why Families Choose OWIS Osaka

Multicultural, Inclusive Community

Students & faculty representing 40+ nationalities

Expanding Sports Programme

Sports teams, tournaments, & ex-professional coaches

Optimal Student-Teacher Ratio of >18

Personalized attention and support

Updates & Announcements

Last updated on 2026-01-22

Transition Programme For April Starters - girls with their hand in the air ready to answer a question

Four-Month Transition Programme for April Starters

Supporting students’ English language development and transition to an international academic calendar, helping them begin the academic year confidently in August.

Launching New After-School Clubs Open to Everyone!

New after-school clubs! Including Hip-hop, Basketball, Art club, Intensive English, and more! Click here to learn more

Building Towards K12 Education

OWIS Osaka currently offers Early Childhood to Grade 8 (ages 3-14)

We plan to open a new grade every year, with Grade 12 opening in 2029.

Junior Secondary School Students at OWIS Osaka reading a book in class

AGE 11-16 YEARS

Junior Secondary School

Our international curriculum will promote critical thinking and creativity, so young learners will be well-prepared for the challenges of high school.

Grade 10 will open in 2027

World-Class academics and education being taught at One World International School. A secondary school student read a textbook and thinks deeply (thinking)

AGE 16-18 YEARS

Senior Secondary School

A rigorous and goal-oriented learning experience that will prepare learners for a fruitful university life and a well-defined career path.

Grade 11 will open in 2028
Grade 12 will open in 2029

English Language Progammes

 

OWIS Osaka offers tailored English language support to help students build confidence and succeed in an international school environment. With an immersive English setting—English instruction, international faculty, and a diverse student body—students practise English naturally every day through lessons, friendships, and school life. Programmes include:

  1. Academic English Preparation (AEP) classes provide structured, in-school language support to strengthen everyday and academic English.

  2. Four-month Transition Programme (April–July) helps students adjust smoothly to an English-speaking classroom and prepare for the August start of the academic year.

  3. Afterschool Intensive English Club offers additional small-group practice to accelerate progress and build communication confidence.

Future-Powered Learning at OWIS Osaka: Technology as an Enabler for Learning

IT / Robotics, OWIS students learning coding using robots at OWIS Osaka

Programming & Robotics

OWIS Osaka Student uses a 3D Printer to make a keychain in IT class

3D Printer Maker Space

Nikon School of Creativity Wall Creative, a collaboration between OWIS and Nikon

Nikon Photography Studio

OWIS Osaka Student uses an Apple PC in the computer lab to learn digital literacy in IT class

Apple Computer Lab

Electric Drumkit

OWIS Osaka Primary school student uses an Apple Tablet (ipad) in the classroom to do research for a reading task

Student iPads & MacBooks

1. Enhanced Learning Experience: Technology is embedded across the curriculum to make lessons more interactive and engaging—helping students participate actively and stay motivated.

2. Strengthens Understanding: Digital tools deepen learning by visualising concepts, enabling meaningful practice and feedback, and supporting a range of learning styles.

3. Balanced Tech-Use: Students learn to use technology thoughtfully and responsibly to enhance learning, while hands-on, analogue experiences remain essential, prioritised, and are never replace.

4. Digital Confidence: Students build practical digital confidence to work independently, choose the right tools for the task, and develop safe, ethical habits for school and home.

Message from the Founding Head of School:

Building a Global Community in Osaka

“As the Founding Principal of OWIS Osaka, I am keen to build a team of talented educators who are dedicated to creating a nurturing learning environment that will enable students to achieve their full potential. Our aim is to provide a holistic education that is both rigorous and relevant, equipping students with the knowledge, skills, and values they need to succeed in a rapidly changing world…”
Greg Culos - Head of School at OWIS Osaka

Greg Culos

Founding Head of School, OWIS Osaka

After-School, Clubs, Extracurricular, & Seasonal (ACES) Programmes

At OWIS Osaka, our ACES programmes are open to everyone. These programmes provide students with opportunities to explore interests, develop new skills, and build confidence in a supportive and engaging environment. 

Sports, Dance, & Team activities at at the OWIS Osaka Winter Camp - Such as hip hop break dancing (ACES)
OWIS OSAKA Afterschool soccer club wins an away tournement ACES programme
ACES Girl in Afterschool Pottery class, painting her own pottery
Our after-school clubs and extracurriculars include competitive sports, creative and performing arts, and enrichment programmes such as Intensive English and chess club, supporting students’ confidence, creativity, and teamwork.
OWIS Osaka Summer Camp
OWIS Osaka Summer Camp
Winter Camp Snow mountain and sledging fun activity excursion, with One World International School.
Our seasonal camps offer themed, hands-on programmes during Summer and Winter holidays, combining learning, creativity, and play to keep students engaged while building confidence, curiosity, and new friendships.

OWIS Osaka Campus Facilities

OWIS Osaka offers a colourful and spacious campus designed to support holistic, inquiry-based learning. Students benefit from interactive classrooms, a rooftop swimming pool, a black box theatre, and dedicated spaces for robotics, 3D printing, and digital media. The campus also features a full gymnasium, music and art studios, and a well-stocked library, creating an environment where creativity, wellness, and academic excellence thrive.

Download Our Brochure

Prospectus Brochure (English)

OWIS Osaka Downloadable prospectus brochure - Japanese

Prospectus Brochure (Japanese)

OWIS Japan AEP Pamphlet for exit intent and downloads page

AEP Pamphlet (English + Japanese)

Osaka Relocation Guide - One World International School Osaka

Osaka Relocation Guide (English)

One World International School (OWIS) Seperator, divider, baner, stripe

OWIS Osaka is a proud member of the Global Schools Group (GSG), an international network of schools that share educational excellence and operational best practices.

One World International School in Japan is proud to be part of the Global School Group (GSG)
One World International School (OWIS) Seperator, divider, baner, stripe

See What Parents Have to Say About Our Campus

Over 1000 Visitors at Spring Carnival with Miss Universe Japan

Meet Our Grade 6 Student at OWIS Osaka

Students put on a range of performances at the 2025 Winter Exhibition

Big News!📣⁣大きなお知らせ!⁣⁣Our ACES coordinator Josh and PE teacher David are excited to tell you a bit about our upcoming sports club plans here at OWIS. We can't wait to share more with you very soon, so make sure to keen an eye out on our social media pages! 🙌⁣--------------⁣OWISのACESコーディネーターであるジョシュと、PE(体育)教師のデイビッドが、本校で予定している今後のスポーツクラブの計画について、皆さんに少しご紹介できることを楽しみにしています。⁣⁣近いうちにさらに詳しい情報をお届けしますので、ぜひ本校のSNSをチェックしていてください!🙌⁣#OWIS⁣⁣⁣#InternationalSchoolOsaka⁣⁣⁣#InternationalSchoolJapan⁣⁣⁣#インターナショナルスクール⁣⁣⁣#インターナショナルスクール大阪

Big News!📣⁣
大きなお知らせ!⁣

Our ACES coordinator Josh and PE teacher David are excited to tell you a bit about our upcoming sports club plans here at OWIS. We can`t wait to share more with you very soon, so make sure to keen an eye out on our social media pages! 🙌⁣
--------------⁣
OWISのACESコーディネーターであるジョシュと、PE(体育)教師のデイビッドが、本校で予定している今後のスポーツクラブの計画について、皆さんに少しご紹介できることを楽しみにしています。⁣

近いうちにさらに詳しい情報をお届けしますので、ぜひ本校のSNSをチェックしていてください!🙌


#OWIS⁣⁣⁣
#InternationalSchoolOsaka⁣⁣⁣
#InternationalSchoolJapan⁣⁣⁣
#インターナショナルスクール⁣⁣⁣
#インターナショナルスクール大阪
...

Location and Access:

Address:
One World International School Osaka, 3-1-39 Shariji, Ikuno-ku, Osaka, 544-0022.

Check out our Access Page for more information on how to reach us by car, train, bus, and on-demand shuttle.