Cognomen Gunarathne (Gunarathne 
) , throughout the world, is a common last name. The last name Gunarathne is habitual in Sri Lanka, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Qatar, where it is a rare surname. In absolute terms, it most frequently occurs in Sri Lanka, United Arab Emirates, and Australia. Very seldom, Gunarathne is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gunarathne | Australia, United Arab Emirates, Oman, Indonesia, Sri Lanka |
| deepthi kumara gunarathne Sri Lankan politician, LK |
|
|
| devika s. gunarathne physicist at Temple University |
|
|
| viraj gunarathne researcher (ORCID 0000-0001-5690-7697) |
|
|
| senila amaneth gunarathne chess player |
|
Mr, Kasun, Kelsi, Rohan, Ruwan, Dilan, Gayan, Gihan, Tanya, Nalin, Kamal, Nilan, Nuwan, Viraj, Inoka, Isuru, Isura, Isuri, Yasas, Yohan, Udara, Nimal, B P P, Brian, Chaya, Sam, Ann, Guy, Daya, Neel, Isla, Upul, Manoj, Meenu, Saman, Sahan, Sadun, Sunil, Supun, Sohan, Anush, Anura, Aruna, Amila, Ashan, Akila, Udari, and Udeni