- Aeronautical Society
- Art Club
- Association of Innovation and Design
- Association of Science and Technology
- Automobile Club
- Buddhist Students’ Association
- Canto Perpetua Choir
- Carnatic Orchestra
- Classical Music Association
- Commerce Society
- Cubing Society
- Culinary Arts Society
- English Drama Society
- English Lit & Debating Society
- Gavel Club
- Geography Society
- Health Club
- Hewisi Band
- Hindu Students’ Union
- Histoarcheo Club
- HNB Students’ Savings Unit
- ICT Society
- Interact Club
- Islamic Society
- Junior English Lit & Debating Society
- Junior Maths Society
- Junior Science & Technology
- Kennel Club
- Media Unit
- Photographic Club
- Political Science Society
- Productive Citizenship Society
- Quiz Club
- Scuba Diving Unit
- Radio Club
- Red Cross Society
- Road Safety Patrol
- Senior Environmental Club
- Seylan Bank Students’ Savings Unit
- Sinhala Literary & Debating Society
- Society for Social Work & Welfare
- Spelling Union
- Student Christian Movement
- Tamil Drama Society
- Tamil Literary and Debating Society
- The Ternion
- Thomian Union
- United Nations Club
- Western Band
- Wildlife Society
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.