Gunaratne or Gunaratna (Sinhala: ගුණරත්න) is a Sinhalese name that may refer to
- Gunaratna Weerakoon, Sri Lankan politician
- 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
- 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
- Tudor Gunaratne (born 1966), Sri Lankan cricketer