Gunaratne or Goonaratne () is both a given name and a surname. Notable people with the name include:
Given name Gunaratna Weerakoon, Sri Lankan politician
Surname Anil Goonaratne, Sri Lankan judge and lawyer Asela Gunaratne (born 1986), Sri Lankan cricketer C. V. Gunaratne, Sri Lankan Minister of Industries Development Chandima Gunaratne (born 1982), Sri Lankan cricketer Chathura Gunaratne (born 1982), Sri Lankan association football midfielder D. Shelton A. Gunaratne, Sri Lankan American professor of mass communications Dedunu Gunaratne, Sri Lankan cricketer Dilesh Gunaratne, Sri Lankan cricketer K. D. Goonaratne, Sri Lankan schoolteacher and politician Kamal Gunaratne, Sri Lankan military general M. H. Gunaratne, Sri Lankan military officer Nimal Gunaratne, Director of Health Services of the Sri Lanka Air Force Pulasthi Gunaratne (born 1973), Sri Lankan cricketer R. D. Gunaratne, Sri Lankan chess player and scientist Rohan Gunaratna (born 1961), Singaporean analyst on security affairs Sarath Kumara Gunaratna, Sri Lankan politician Thalika Gunaratne (born 1975), Sri Lankan cricketer Tilak Goonaratne, Sri Lankan civil servant and diplomat Tudor Gunaratne (born 1966), Sri Lankan cricketer Yasmine Gooneratne, Sri Lankan writer