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Colombo International School was founded in 1982, in response to the growing demand for co-educational, English-medium, high quality education in Colombo. From its inception, CIS has been located in Gregory's Road, Colombo 7 (formally known as Cinnamon Gardens), which is one of the most desirable, safe, attractive and quiet residential locations in the city. In 1998 the school opened CIS Kandy.
The ethos and curriculum of CIS Kandy are identical to the main Colombo branch and students are also prepared for Edexcel's IGCSE and A Level examinations. A full range of subjects is offered in both branches and many students have gone on to attend prestigious universities in the UK, USA, Australia, Singapore, India and elsewhere.




















Click below buttons to take a walk through some of our locations
Entry application forms and other relevant details can be requested over telephone (or) email us at management@cis.lk.
Entry to the school takes place throughout the year and involves an assessment in English and Mathematics. Reports will also be reviewed at an informal interview.

The Crucible

Big Match 2023

Charity Donations

COMUN 2023

CIS MAKES A SPLASH WITH A LUCKY 13

INTER HOUSE SWIMMING MEET 2022-2023

BOYS INTER-HOUSE BASKETBALL

40TH ANNIVERSARY CELEBRATIONS

THE BIG MATCH 2022

OLYMPIAD Award Ceremony 2022

MOVIE NIGHT 2022

CIS ROAD RACE 2022

Inter-House Football 2022

Lillard Nixon Debating Tournament 2022

Raveen Kariyawasam

ClS Clubs and Societies Fair

Past Student Raveen Kariyawasam

Past Student Raveen Kariyawasam

Cutting Edge 2022 Coding Competition

RAMAZAN AND WESAK ASSEMBLIES

CIS Excels at COMUN

Inter-House Drama Competition 2022

CIS Reveals Great Success at MCMUN 2021

Burdette Trophy

Back to the Pool Swimming Competition

CIS Achieves at SLMUN - Award Winners

36th Junior Rowing Nationals

CIS Environmental Society Award

Youth Water Sports Championship

Victoria Golf Country Resort Event

General Knowledge Quiz

Gold Medal at World Choir Festival

National Golf Squad Selected

Third Consecutive Debating Victory

National Golf Championship

National Sports Colours 2021/22

Barcelona Football Academy

Young Musicians at The Wendt

Sri Lankan Mathematics Competition 2019

CIS Virtual Art Exhibition 2021

Science Olympiad 2020

Gratiaen Prize

Sportsman of the Year 2019

CIS Crowned Debating Champions
