Deshabandu Roshan Siriwardene Mahanama (Sinhala: රොෂාන් මහානාම; born 31 May 1966) is a former Sri Lankan cricketer and a former ICC match referee. He was a key member for 1996 Cricket World Cup winning team for Sri Lanka. He is the first man to have stood as a match referee in a day-night test match in Test history.