Family name Nanayakkara (Nanayakkara 
) , globally, is a common surname. The surname Nanayakkara is characteristic of Sri Lanka, where it is a common surname, Maldives, where it is quite a common surname, and United Arab Emirates, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Sri Lanka, United Arab Emirates, and Australia. Very seldom, Nanayakkara is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Nanayakkara | Australia, United Arab Emirates, Indonesia, United States, Sri Lanka |
| v. t. nanayakkara Sri Lankan politician, LK (b. 1902) |
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| leo nanayakkara (b. 1917) |
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hemakumara nanayakkara Sri Lankan politician, LK |
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udaya nanayakkara Sri Lankan general |
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suranga nanayakkara inventor, LK (b. 1981) |
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| nethalie nanayakkara Sri Lankan actor and lyricist, LK (b. 1937) |
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| wally nanayakkara Sri Lankan actor and lyricist (1939-2003), LK (b. 1939) |
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| yasapalitha nanayakkara Sri Lankan writer, LK (b. 1940) |
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| thrishantha nanayakkara researcher |
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| jina nanayakkara researcher |
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| sadisha nanayakkara researcher (ORCID 0000-0002-1316-1888) |
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| sanjini u nanayakkara researcher (ORCID 0000-0003-1526-2081) |
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| chandika nanayakkara Sri Lankan actor, LK |
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| nuwan d nanayakkara researcher |
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| ishara nanayakkara Sri Lankan businessman |
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