Cognomen Gunasinghe (Gunasinghe 
) , all around the world, is quite a common family name. The surname Gunasinghe is habitual in Sri Lanka, where it is quite a common surname, United Arab Emirates, where it is a rare surname, and Qatar. Measured by absolute frequency, it most frequently occurs in Sri Lanka, Australia, and United Arab Emirates. Much less frequently, Gunasinghe is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gunasinghe | Australia, United Arab Emirates, United States, Indonesia, Sri Lanka |
| nanda gunasinghe politician (1944-2006), LK (b. 1944) |
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| cerisse gunasinghe researcher ORCID ID = 0000-0001-9498-2022 |
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| n. gunasinghe researcher |
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| chathupama gunasinghe cricketer, LK (b. 1987) |
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| nimesha gunasinghe cricketer, LK (b. 1995) |
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Mr, Asiri, Asela, Asoka, Ajith, Chami, Kamal, Kasun, Kusal, Kisal, Ashan, Pahan, Dayan, Dasun, Dilan, Dilup, Dulan, Dulaj, Gayan, Namal, Niraj, Ranil, Nimal, Amila, Aruna, Don, Tim, Marc, Siri, Suji, Amal, Chad, Rosa, Rosi, Amali, Rock, Upul, Manel, Manju, Malka, Mohan, Sanka, Sahan, Supun, Anura, Emma, and Nihal