Student Research Society
Promoting research and analytical thinking through social science research, data analysis, projects, and workshops.
Current Affairs Forum
The Current Affairs Forum develops awareness, critical thinking, discussion skills and understanding of local and global issues
History Archeo Club
The Histo-Archeo Club explores history and archaeology through research, discussions, field visits, and preservation.
Oriental Dancing Society
Builds discipline, confidence, and respect through oriental dance, nurturing culture and life skills.
Philatelic & Numismatic Society
A student society dedicated to stamp and coin collecting, research, heritage and creative collaboration.
Robotics Club
Robotics Club sparks creativity, empowering students to design, build, and innovate, building tomorrow's innovators.
Yoga Club
The Yoga Club promotes physical and mental well-being through yoga, mindfulness, workshops, and healthy living.
Library Club
Environmental Club
Promotes environmental stewardship through conservation, awareness, and service to protect nature.
Chamber Orchestra
The chamber orchestra brings students together to enrich school events with classical and contemporary performances.
Cinema Society
The Cinema Society brings film enthusiasts together to explore, appreciate, and celebrate the art of cinema.
Astronomy Club
The Astronomical Society inspires curiosity about space while developing observation skills and scientific thinking.
Aquarium Club
Promotes aquarium care, fish keeping, and aquatic awareness through learning, conservation, and activities.
Scuba Diving Unit
The S. Thomas’ College Sub-Aqua Club (STCSAC) was founded on the 06th of October 1993.
Culinary Arts Society
The Culinary Arts Society fosters creativity and practical culinary skills through hands-on activities and events.
Aeronautical Society
The Aeronautical Society is a group of students who are interested in the field of Aeronautics.
Junior Science Society
The Junior Science and Technology Society inspires scientific curiosity through experiments, innovation, discussions, and creative learning.
Geography Society
The Geography Society inspires global awareness, environmental stewardship and geographical excellence through learning.
Gavel Club
The Gavel Club focuses on the development of the communication skills of students.
Student Christian Movement
The SCM unites Christian students, building faith and prayer, acting as a “hospital for sinners—not a museum for saints”
English Lit & Debating Society
The English Literary Society fosters creativity, literary appreciation, leadership, and self-expression through literature.
Radio Club
The Radio Club, established in 1926, remains one of S. Thomas’ oldest clubs, supporting events through sound and teamwork.
Junior Maths Society
The Junior Maths Society is a prominent society in S.Thomas’ College Mount Lavinia which has a mission to promote...
Road Safety Patrol
Road safety patrol does their part of helping out the traffic police to reduce traffic around the College.
Sinhala Literary & Debating Society
Advancing Sinhala literature, debating and cultural heritage through events, workshops and student initiatives.
Seylan Bank Students’ Savings Unit
The Seylan Unit develops financial literacy, leadership, teamwork, and responsibility through programmes and community service.
HNB Students’ Savings Unit
HNB has been operating a Students’ Savings Units (SSU) at S.Thomas’ College since 1997.
Kennel Club
The Kennel Club of S. Thomas’ College Mount Lavinia has always been an extremely active non-profit Club.
Junior English Lit & Debating Society
Promotes debating, public speaking, creativity, teamwork, and confidence among lower school students.
Buddhist Students’ Association
This society's main goal is being an ain to all children as well as adults who strive hard to live their daily life.
Art Club
The Art Club provides a great platform for creative individuals to explore artistic passions and cultivate skills.
Spelling Union
The Spelling Union helps members improve vocabulary, pronunciation and spelling skills with presentations and quizzes.
Carnatic Orchestra
The Carnatic Orchestra functions at college to develop Thomians' interest in pure Carnatic Music by performing in shows.
Canto Perpetua Choir
The Canto Perpetua Choir is a platform for students of all backgrounds to nurture their vocal & performative skills.
Western Band
The Western Band, established in 1969, promotes musical excellence, teamwork, discipline, and Thomian spirit.
Tamil Drama Society
The Tamil Drama Society celebrates culture, creativity, and theatre through student-powered productions and performances.
English Drama Society
The English Drama Society, founded in 1872, nurtures theatre, creativity, teamwork, and leadership through stage experiences.
Hewisi Band
The Hewisi Band of S. Thomas' College redefines beats with a Thomian spirit, passing tradition to younger generations.
Photographic Club
The Photographic Club preserves College memories through event coverage, visual storytelling, and promoting photography among students.
Society for Social Work & Welfare
Promotes social service through welfare initiatives supporting teachers, elders, students, and the community.
ICT Society
Founded in 1986, the ICT Society of STC promotes innovation through media, livestreaming, web, and ICT education.
Senior Environmental Club
The Senior Environmental Club preserves nature through conservation, education, and initiatives for a greener future.
Hindu Students’ Union
The Hindu Students’ Union promotes Hindu values, culture, leadership, unity, and charity initiatives among students.
Political Science Society
The Political Science Society promotes political awareness, critical thinking, leadership, and civic responsibility through engaging activities.
Association of Innovation and Design
"Since the re-establishment of this association in January 2021 after a period of inactivity, The Association of....
Red Cross Society
The Red Cross society is a niche and important society in the school where first aid is being taught to its members.
Islamic Society
The Islamic society is a religious society in school, where prayers are performed every morning during normal school.
Automobile Club
Encourages students to explore automobiles through learning, discussions, and appreciation of automotive technology.
Association of Science and Technology
The Association of Science and Technology offers students a platform to explore scientific fields and cultivate curiosity.
Quiz Club
The Quiz Club of S.Thomas' College aims to sharpen the intellect and enrich the worldview of all its members.
Cubing Society
Cubing helps improve memory & problem-solving skills, makes one’s reflexes faster and keeps the mind active.
Health Club
The Health Club promotes awareness and knowledge of healthy lifestyles through educational programmes and activities.
Tamil Literary and Debating Society
Established in 1945 at S. Thomas’ College, the Tamil Literary and Debating Society promotes Tamil language, literature and cultural heritage.
Wildlife Society
The Wildlife Society is one of the oldest natural history clubs in the Island. Our society has seen great naturalists.
Commerce Society
The Commerce Society empowers future business leaders through innovation, learning, and leadership.
Interact Club
The Interact Club of S. Thomas’ College began in 1983, under the Warden, the late Mr. Neville De Alwis.
Thomian Union
The Thomian Union preserves College heritage, traditions, and values while fostering loyalty, leadership, and brotherhood.
The Ternion
The Ternion is the official College Newspaper, dedicated to reporting the current affairs of all aspects of College.
Media Unit
The media unit is a club dedicated towards cultivating a student group who is interested in topics such as journalism.
Classical Music Association
A club that provides a platform for students to gain and share their musical knowledge whilst giving the opportunity
Productive Citizenship Society
The Productive Citizenship Society has been a renowned club since its initiation and has been involved in many activti
United Nations Club
The United Nations Club promotes community service, unity, and social responsibility through impactful projects and initiatives.