- Philatelic & Numismatic Society
- Robotics Club
- Yoga Club
- Library Club
- Environmental Club
- College Magazine
- Chamber Orchestra
- Cinema Society
- Astronomy Club
- Aquarium Club
- Scuba Diving Unit
- Culinary Arts Society
- Aeronautical Societya
- Junior Science & Technology
- Histoarcheo Club
- Geography Society
- Gavel Club
- Student Christian Movement
- English Lit & Debating Society
- Radio Club
- Junior Maths Society
- Road Safety Patrol
- Sinhala Literary & Debating Society
- Seylan Bank Students’ Savings Unit
- HNB Students’ Savings Unit
- Kennel Club
- Buddhist Students’ Association
- Junior English Lit & Debating Society
- Art Club
- Spelling Union
- Carnatic Orchestra
- Canto Perpetua Choir
- Western Band
- Tamil Drama Society
- Hewisi Band
- English Drama Society
- Photographic Club
- Society for Social Work & Welfare
- ICT Society
- Senior Environmental Club
- Hindu Students’ Union
- Political Science Society
- Red Cross Society
- Association of Innovation and Design
- Islamic Society
- Association of Science and Technology
- Quiz Club
- Automobile Club
- Cubing Society
- Health Club
- Tamil Literary and Debating Society
- Wildlife Society
- Thomian Union
- Commerce Society
- Interact Club
- The Ternion
- Classical Music Association
- Media Unit
- Productive Citizenship Society
- United Nations Club
Interact Club
The Interact Club of S. Thomas’ College began in 1983, under the Warden, the late Mr. Neville De Alwis.The Interact Club of S. Thomas’ College has produced many highly ranked Interactors who still serve the community and shine as true gentlemen. The Interact Club of S. Thomas’ College, wishes only to carry forward what has been done in the past and to resurrect projects which have faded away whilst maintaining our values and traditions of the past we shall integrate the modern evolution of Interact in order to be the exemplary club we have been and are.
Latest Project
Project We Fight Together- Phase 01
‘We Fight Together’ is a community service project that is primarily aimed at providing essential protective health equipment against the covid-19 pandemic. This includes the provision of surgical masks, KN95 masks, handwash and sanitizer.