Dassanayake or Dassanaike () is a Sinhalese surname.
Notable people Ananda Dassanayake (1920–2012), Sri Lankan politician Chamara Sampath Dassanayake, Sri Lankan politician D. M. Dassanayake (1953–2008), Sri Lankan politician Dharmasiri Dassanayake, Sri Lankan politician Duminda Dassanayake (born 1988), Sri Lankan cricketer Gehan Dassanayake, Sri Lankan cricketer Indra Dassanayake (1943–2019), Sri Lankan academic Ivan Dassanayake (1910-?), Ceylonese politician Kingsley C. Dassanaike (1914–?), Ceylonese scout leader Pubudu Dassanayake (born 1970), Sri Lankan cricketer Sarath Dassanayake (1942–1999), Sri Lankan composer Sarinda Dassanayake (born 1995), Sri Lankan cricketer Tudor Dassanayake (died 2006), Sri Lankan civil servant
See also Dissanayake (disambiguation)