Dhammika Siriwardana (15 September 1954 â 15 December 2015) (also known as Dhammika Siriwardena and K.D.T Siriwardena) was a Sri Lankan film director, teledrama producer and a businessman. Dhammika is the founding Chairman of Alankulama Holdings (Pvt) Ltd.
Dhammika was educated at Nalanda College, Colombo.
Dhammika was the script writer & director of film Suwanda Denuna Jeewithe that featured famous actors Roshan Ranawana and Pooja Umashankar. Asai Man Piyabanna was a film produced by Dhammika Siriwardana. Few of other films produced by Dhammika are Rosa Kele, Paaya Enna Hiru Se and Mahindagamanaya.