Kumarasinghe is both a given name and a surname. Notable people with the name include:
Kumarasinghe Sirisena (born 1962), Sri Lankan business executive Charitha Kumarasinghe (born 1992), Sri Lankan cricketer Dilshi Kumarasinghe (born 1999), Sri Lankan track and field athlete Geetha Kumarasinghe (born 1955), Sri Lankan film actress Shashikala Kumarasinghe (born 1984), Sri Lankan archer