- 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
Productive Citizenship Society
The Productive Citizenship Society of S. Thomas’ College Mount Lavinia has been a renowned club since its initiation and has been involved in many college projects for over a decade. The Productive Citizenship Society is well known for organizing the Annual Peace Day and the Annual Sinhala and Tamil New Year Celebrations. Apart from this, the Productive Citizenship Society has been involved in many more significant projects both inside the school and outside the school in the end goal of promoting a productive lifestyle.
Latest Project
Sublime '21
The competition commenced on 07/06/2021 with submissions were opened till 21/06/2021 for age groups of Grade 5 – 8 and Grade 9 – 12 under the topic “Art work of Productive/Social Work Acts”. The winners of each age group will receive cash prizes as follows,1st place – Rs.5000 and 2nd place – Rs.2500. The prize money will be presented once school reopens.