Samaranayake, MBCS, MCS(SL), FNASSL, MIEEE (Sinhala:??.??.???????) (1939 – 6 June 2007) pioneered computing & IT development industry and usage in Sri Lanka and thus considered as the "Father of Information Technology" in Sri Lanka.
He was a Professor of Computer Science and former Dean of the Faculty of Science, University of Colombo.
Prof Samaranayake played a major role in the development of IT and IT related education in Sri Lanka.
He was at the time of his death the chairman of the Information and Communication Technology Agency (ICTA) of Sri Lanka and was the founding and former director of the University of Colombo School of Computing (UCSC).