D. A. Priyantha Dissanayake is an officer of the Sri Lanka Army, with over 40 years of service. He is widely recognised for his contributions to both military operations and national infrastructure projects, including his service during the Sri Lankan Civil War and his leadership within the Sri Lanka Engineers Regiment.
Dissanayake was commissioned into the Sri Lanka Engineers Regiment in 1983 and became a Troop Commander in 1995. His military service was marked by his active involvement in operations to counter insurgencies, particularly in the north and east of Sri Lanka during the Sri Lankan Civil War.
Throughout his career, Dissanayake played a key role in major military operations, infrastructure development, and peacekeeping missions. His leadership during pivotal moments in the war and his oversight of critical projects in war-torn regions exemplified his commitment to national defense and recovery. He is renowned for volunteering to dismantle an explosive device placed under a bridge by the LTTE during Operation Sath Jaya, an act that saved numerous lives. In recognition of his bravery and leadership, Dissanayake was awarded the Rana Sura Padakkama (RSP) for acts of bravery in combat and the Uttama Seva Padakkama (USP) for distinguished service to the nation.
In addition to his battlefield contributions, Dissanayake was instrumental in several national infrastructure projects. He supervised the construction of key roads, including the Somawathiya-Seruwavila road and the Trincomalee Outer Circle Road, which played a crucial role in post-war reconstruction and economic development. His work on the Piduruthalagala Transmission Tower road and projects in the Puttalam and Mannar regions further highlighted his contributions beyond the military sphere. During his final years of service, he constructed several water reservoirs and dams, which were indispensable for supporting fauna, flora, and agriculture in the dry regions of the country. In 2012, Dissanayake also served in international peacekeeping operations under the guidance of the United Nations, where he oversaw the maintenance of an airfield in Chad during his deployment to the Central African Republic as part of a UN mission.
Following his retirement from the military in 2023, Dissanayake continues to contribute to national development, through his work with the Land Reclamation and Development Company. As a project manager, he oversaw several important projects, including the expansion of the Bandaranaike International Airport and the construction of the German-Sri Lanka Friendship Maternity Hospital in Karapitiya.