Tillakaratne is a given name and surname. Notable people with the name include:
Given name Tillakaratne Dilshan (born 1976), Sri Lankan cricketer Tillakaratne Sampath (born 1982), Sri Lankan cricketer
Surname Duvindu Tillakaratne (born 1996), Sri Lankan cricketer Hashan Tillakaratne (born 1967), Sri Lankan cricketer Heshan Tillakaratne (born 1976), Sri Lankan cricketer Nilantha Tillakaratne (born 1977), Sri Lankan cricketer Ravindu Tillakaratne (born 1996), Sri Lankan cricketer Samith Tillakaratne (born 1978), Sri Lankan cricketer