Rathnayaka Mudiyanselage Dharmadasa Banda (7 February 1938 – 23 October 2010), known commonly as R. M. Dharmadasa Banda, was a Sri Lankan teacher, lawyer and politician, a member of the Parliament of Sri Lanka and a former cabinet minister. He was a Basnayaka Nilame (Lay Custodian) of the Ruhunu Maha Kataragama Devalaya.
Born in the village of Medagam Pattuwa in Bibile, his father was the R. M. Kiribanda was the Village Headman. He was educated at the Medagama School in Bibile, Ananda Sastralaya, Kotte and Zahira College, Colombo. Following his studies he returned to Bibile, gained an appointment as an English teacher and was elected Chairman of the Medagama Village Council.[1]
His son Hareendra Dharmadasa Bandara served as a Member of Uva Provincial Council and is currently the organizer of Samagi Jana Balawegaya for Bibile electorate.