Kariyawasam Thantrige Gayan Thilanka de Silva (born 23 February 1988), known as Gayan de Silva, is a professional cricketer who made his debut in Sri Lankan domestic cricket during the 2012–13 season. His early cricket was played in Bahrain, the country of his birth, and he played at senior level for the Bahraini national side between 2004 and 2006, having earlier represented Bahrain at various underage levels.