Deshabandu Roshan Siriwardene Mahanama (Sinhala: ?????? ??????; born 31 May 1966 in Colombo) 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.
In September 2015, Mahanama said that he would step down from the ICC match referee panel at the end of the year; he will spend his time with his family and his businesses.