Welcome to The Overseas School of Colombo

The Overseas School of Colombo (OSC) is the most prestigious international school in Colombo, Sri Lanka since 1957!

OSC develops the whole person as a responsible learner striving for personal excellence within a culturally diverse school.

As an International Baccalaureate World School, we proudly serve students from 40 nationalities, from pre-Kindergarten to Grade 12.

Located on a green and spacious campus in Battaramulla, a suburb of Colombo, OSC is dedicated to developing our students into responsible learners, striving for excellence within a culturally diverse school. While academic expectations are high, our students are also encouraged to participate in a broad range of cultural, athletic and community service endeavours.

At OSC, we are a welcoming community school, where parents and teachers are partners in the education of our students. Working together, we create the kind of environment where children not only learn, but thrive.

We welcome students from around the world and we hope that you will learn more about us on our website. Do not hesitate to contact us if you require further information.

Areta Williams
Head of School