Family name Wikramanayake (Wikramanayake 
) , around the world, is quite a rare last name. The cognomen Wikramanayake is habitual in Sri Lanka, where it is quite a common surname, Australia, where it is a rare surname, and New Zealand, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Sri Lanka, Australia, and the United States.
| VARIANT | COUNTRY |
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| Wikramanayake | Australia, Canada, United States, Sri Lanka, United Kingdom |
| v. s. de s. wikramanayake Ceylonese lawyer and politician (b. 1876) |
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| gihan wikramanayake Sri Lankan computer scientist, LK (b. 1960) |
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| shemara wikramanayake Australian businesswoman (b. 1962) |
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| e. b. wikramanayake Sri Lankan politician, LK |
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| eric wikramanayake researcher |
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| tongyu c wikramanayake researcher (ORCID 0000-0001-6307-7986) |
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| arittha r wikramanayake Sri Lankan lawyer |
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| athula wikramanayake Developmental Biologist |
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| eric wikramanayake Conservation Scientist |
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Mr, Saliya, Shevan, Ananga, Anisha, Arittha, Amanda, Achini, Clover, Dillon, Mihiri, Duleep, Teruni, Nalini, Nirupa, Vishan, Indira, Ishika, Srinath, Ariesha, Akshath, Lahari, Marisa, Marian, Viraj, Ms, Ben, Guy, Ian, Mano, Anil, Bala, Jude, Neil, Eric, Mohan, Anika, Ashan, Asoka, Ranji, Rohan, Grace, Gihan, Thili, Tilak, Hiran, Kshanti, and Deborah