St. Mary's College Dehiwala
Founded on October 20th, 1909, by the visionary Rev. Fr. Augustine Gillet and the dedicated leadership of our first Principal, Mrs. Florence Poulier, St. Mary's College has been a beacon of excellence and holistic education for over a century. Our institution is committed to fostering intellectual growth, moral development, and the overall well-being of our students. With a rich history and a vibrant community, St. Mary's College continues to uphold its legacy of providing quality education and nurturing the leaders of tomorrow.
St. Mary’s College Dehiwala Old Boys Union Announces New Leadership for 2026/2027
St. Mary’s College Dehiwala Old Boys Union Announces New Leadership for 2026/2027 The St. Mary’s College, Dehiwala Old Boys Union […]
Notice of the 28th Annual General Meeting of the St. Mary’s College Dehiwala Old Boys’ Union
Notice of the 28th Annual General Meeting of the St. Mary’s College Dehiwala Old Boys’ Union The St. Mary’s College […]
Melbourne Old Marians Continue “Rebirth Renewal” Initiative in Support of St. Mary’s College
Melbourne Old Marians Continue “Rebirth Renewal” Initiative to Support the Future of St. Mary’s College MELBOURNE, AUSTRALIA – The enduring […]
Introduction of GCE Advanced Level (A/L) Classes at St. Mary’s College Dehiwala from 2026
Introduction of GCE Advanced Level (A/L) Classes at St. Mary’s College Dehiwala from 2026 St. Mary’s College, Dehiwala is pleased […]
St. Mary’s College Dehiwala Introduces English Medium Education from Grade one starting from 2027
St. Mary’s College Dehiwala Introduces English Medium Education from Grade one starting from 2027 St. Mary’s College, Dehiwala is pleased […]
Farewell to a Legend, The Final Bell Tolls for Douglas Pereira
Farewell to a Legend, The Final Bell Tolls for Douglas Pereira It is with a heavy heart and profound sadness […]
Welcoming the Grade One Students for the Academic Year 2026
Welcoming the Grade One Students for the Academic Year 2026 St. Mary’s College, Dehiwala warmly welcomed the new Grade One […]
St. Mary’s College, Dehiwala Celebrates Its 116th Anniversary
St. Mary’s College, Dehiwala Celebrates Its 116th Anniversary St. Mary’s College, Dehiwala proudly celebrated its 116th Anniversary in October 2025, […]
St. Mary’s College Steps Back into the Boxing Ring
St. Mary’s College Steps Back into the Boxing Ring St. Mary’s College, Dehiwala, is once again stepping into the boxing […]
St. Mary’s College Dehiwala Sinhala & Tamil New Year Greetings 2026
St. Mary’s College Dehiwala Sinhala & Tamil New Year Greetings 2026 As the dawn of the Sinhala and Tamil New […]
Independence Day Wishes From St. Mary’s College Dehiwala
Independence Day Wishes From St. Mary’s College Dehiwala As we celebrate 78 years of independence, we reflect on the journey […]
Christmas Greetings from St. Mary’s College, Dehiwala 2025
Christmas Greetings from St. Mary’s College, Dehiwala As we celebrate the joyous season of Christmas, St. Mary’s College, Dehiwala extends […]
Postponement of “Shopping Fiesta 2025” Due to Adverse Weather and Disaster Conditions
Postponement of “Shopping Fiesta 2025” Due to Adverse Weather and Disaster Conditions Due to the severe disaster situation and adverse […]
Important Notice: Updated School Reopening Date 2025
Important Notice: Updated School Reopening Date 2025 Following the previous announcement regarding the conclusion of the First Phase of the […]
Annual Prize Giving 2023/2024
Annual Prize Giving 2023/2024 The Annual Prize Giving Ceremony of St. Mary’s College, Dehiwala for the year 2023/2024 has been […]
Closure and Reopening of School – End of Third Term 2025
Closure and Reopening of School – End of Third Term 2025 As per the announcement made by the Ministry of […]
Academics
At St. Mary's College Dehiwala, we are dedicated to providing an education that goes beyond textbooks. Our goal is to cultivate well-rounded individuals who excel academically and contribute positively to society. With a team of dedicated educators and state-of-the-art facilities, we support the diverse learning needs of our students, inspiring them to reach their full potential.
Sports
Sports at St. Mary's College Dehiwala are more than just games; they are a vital part of our students' development. Our comprehensive sports program encourages students to excel in various athletic disciplines, fostering teamwork, discipline, and resilience. With top-notch facilities and dedicated coaches, we nurture talent and inspire a passion for sports, ensuring our students grow into well-rounded individuals who value both physical fitness and sportsmanship.
Clubs and Society's
Engagement in clubs and societies at St. Mary's College Dehiwala is an integral part of our educational philosophy. We offer a diverse range of clubs and societies that provide students with opportunities to explore their interests, develop new skills, and build lasting friendships. From academic clubs to cultural and recreational societies, we encourage every student to engage in activities that foster personal growth, leadership, and a sense of community.





