Nalin de Silva, Sri Lankan physicist and philosopher
Thakurartha Devadithya Guardiyawasam Lindamulage Nalin Kumara de Silva (Sinhala: නලින් ද සිල්වා; born 20 October 1944) is a Sri Lankan philosopher and a political analyst. He is the current Sri Lankan ambassador in Myanmar. He was a professor in the department of mathematics, a member of University Grant Commission and the dean of the faculty of science at the University of Kelaniya, Sri Lanka.

De Silva has openly stated that the so-called 'objective scientific method' is a lie.In June 2011 he stated that information regarding the presence of arsenic in water claiming that the cause of Rajarata chronic kidney disease had been given to him by the god Natha. The Sri Lanka Association for the Advancement of Science, an organisation in which De Silva claims lifelong membership, has said that they consider it "extremely unfortunate that the Dean of a Science Faculty should make it his publicly stated aim to run down science and bring it into disrepute." However the presence of arsenic was verified in water and vegetation, and the source was found to be agrochemical fertilizers.