Kumara Vidanelage Don Sugathadasa (8 July 1908 – ?) was a Ceylonese politician. Sugathadasa was elected as an independent member at the 1st parliamentary election, held between 23 August 1947 and 20 September 1947, in the Welimada electorate, receiving 4,242 votes (40.86% of the total vote) narrowly defeating his nearest rival, A. G. Divitotawela, by 22 votes. Sugathadasa's victory was assured by estate workers who voted en-bloc against the United National Party.