The Association of Cardiothoracic and Thoracic Surgeons of Sri Lanka (ACTSL) is a professional organization dedicated to advancing the field of cardiothoracic and thoracic surgery within Sri Lanka. Founded by a group of passionate surgeons, the association serves as a platform for collaboration, education, research, and advocacy in these specialized surgical fields. The Association of Cardiothoracic and Thoracic Surgeons of Sri Lanka plays a vital role in advancing the practice of cardiothoracic and thoracic surgery in the country. Through education, research, advocacy, and collaboration, ACTSL strives to enhance the quality of care for patients with heart and lung conditions and support the professional development of its members.