Amarasekara or Amarasekera () is a Sinhalese surname. Notable people with the surname include:
Amarasekara A. C. G. S. Amarasekara (1883–1983), Sri Lankan painter Gunadasa Amarasekara, Sri Lankan writer, poet and essayist Prasanna Amarasekara (born 1981), Sri Lankan athlete Sirisena Amarasekara, Sri Lankan public servant and diplomat
Amarasekera Gamini Amarasekera, Sri Lankan puisne justice of the Supreme Court since 2019
See also