Family name Ranasinghe (Ranasinghe 
) , all over the world, is a widespread surname. The cognomen Ranasinghe is habitual in Sri Lanka, where it is a widespread surname, Maldives, where it is quite a common surname, and United Arab Emirates, where it is quite a rare surname. In absolute terms, it most frequently occurs in Sri Lanka, United Arab Emirates, and Australia. Much less frequently, Ranasinghe is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ranasinghe | United Arab Emirates, United States, Australia, Sri Lanka, Indonesia |
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arthur ranasinghe LK (b. 1898) |
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| laddie ranasinghe Sri Lankan actor (1913–1983) (b. 1913) |
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| anne ranasinghe German non-fiction writer and writer (1925-2016), DE (b. 1925) |
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| tissa ranasinghe Sri Lankan artist, LK (b. 1925) |
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| a. j. ranasinghe Government minister of Sri Lanka, LK (b. 1927) |
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sirimevan ranasinghe Sri Lanka Navy admiral |
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sumeda ranasinghe Sri Lankan athletics competitor, LK (b. 1991) |
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| douglas ranasinghe Sri Lankan actor, LK (b. 1942) |
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sachini ranasinghe Sri Lankan chess player, LK (b. 1994) |
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| ajantha ranasinghe (b. 1940) |
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| duminda s ranasinghe researcher ORCID ID = 0000-0002-0318-2888 |
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| nirosha ranasinghe researcher (ORCID 0000-0002-0800-196X) |
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| thushara ranasinghe researcher (ORCID 0000-0002-8789-7337) |
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| dona suvineetha swarna ranasinghe Ph.D. Dalhousie University 1993 |
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| dinithi ranasinghe researcher (accounting & data analytics) |
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