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School Contact Information

  • Tel: +94-11-278-4920/Intern2 | Fax: +94-11-278-4999

  • E-mail: | Website: 

  • This Fact Sheet is intended to provide general information. For more information, contact A/OPR/OS ( / +1-202-261-8200) or the school directly.

Logo for OSC

The Overseas School of Colombo (OSC) is an independent, coeducational day school, which offers an educational program from preschool through grade 12 for students of all nationalities. The school was founded in 1957. The school year comprises two semesters extending from August 12 to December 11 and from January 4 to June 10.

Organization: The school is governed by a 10-member board of directors, elected annually. The head of school is the chief administrator or executive officer.

Curriculum: The curriculum offered is from the International Baccalaureate (IB) Organization with standards from IB, AERO, Common Core, and other relevant systems. Preschool-grade 5 follow the IB Primary Years Program, grades 6-10 follow the IB Middle Years Program, and grades 11-12 follow the IB Diploma Program. In grades 9-12, students gain credits towards the OSC high school diploma. In the primary grades, OSC offers specialist courses in physical education (including year-long swimming), music, art, drama, information technology, Sinhala, and French. Student services cover English-as-an-Additional-Language and learning support throughout the primary and middle schools. In middle school, students study English, other languages including French, Mandarin, or Spanish; math; science; performing arts; drama; art; physical education (including year-long swimming); technology; humanities; and personal and social education. In grade 10, students can choose French or Spanish, history or geography, and drama or art. All other subjects are studied as in middle school. In grades 11-12, students study English, French, or beginner’s Spanish; Sinhala; math; science (one or two from biology, chemistry, environmental systems, or physics); visual arts or theater arts; geography, history or economics; physical education; and theory of knowledge. All courses are IB courses and are credit bearing for the high school diploma.

Faculty: In the 2020-2021 school year, there are 63 full-time faculty members.

Enrollment: At the beginning of the 2020-2021 school year, enrollment was 393 (PS-grade 5: 161 and grades 6-12: 232).

Facilities: The school is in a purpose-built facility on a five-acre site near the parliamentary complex in the new administrative capital of Sri Jayewardenepura Kotte. It is equipped with two libraries, three art rooms, four science laboratories, three information technology centers, and a 400-seat auditorium. There are also special areas for a music and black-box teaching studio. Sports facilities include a playing field, a 25-meter swimming pool, and a gymnasium.

Finances: In the 2020-2021 school year, annual tuition rates are as follows: PS: $10,900; K: $16,450; grades 1-5: $19,550; grades 6-8: $20,550; grade 9-12: $23,750. The school also charges a one-time, nonrefundable registration fee of $3,000 for PS and $10,000 for K-grade 12 and a refundable deposit fee of $135 for PS-grade 5 and $270 for grades 6-12. These fees are payable in Sri Lankan rupees or U.S. dollars. (All fees quoted in U.S. dollars.)

 Information and statistics are current as of October 2020 and provided by the school.

U.S. Department of State

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