Ekanayake or Ekanayaka is a Sinhalese surname. Notable people with the surname include:
Chandra Ekanayake, Sri Lankan lawyer and judgeEkanayake Edward Rohan Amerasekera, first indigenous Commander of the Sri Lanka Air ForceDilhani Ekanayake (born 1973), Sri Lankan actressNandimithra Ekanayake (born 1943), Sri Lankan politicianNarendra Ekanayake (born 1977), Bahamian cricketerNiluka Ekanayake, 10th Governor of Central Province, Sri LankaNuwan Ekanayake (born 1980), Sri Lankan cricketerPubudu Ekanayaka, Sri Lankan beach volleyball playerSarath Ekanayake, Sri Lankan politicianSepala Ekanayake (born 1949), Sri Lankan hijackerT. B. Ekanayake (born 1954), Sri Lankan politicianW. B. Ekanayake (born 1948), Sri Lankan politician