Cognomen Attanayake (Attanayake 
) , worldwide, is a common family name. The last name Attanayake is characteristic of 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. Not in comparison with a country's population, this name is the most popular in Sri Lanka, United Arab Emirates, and Australia.
| VARIANT | COUNTRY |
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| Attanayake | Australia, United Arab Emirates, United Kingdom, Indonesia, Sri Lanka |
| a m c h attanayake researcher |
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| nuwan h. attanayake researcher ORCID ID = 0000-0001-7622-2337 |
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| anoja priyadarshani attanayake researcher (ORCID 0000-0002-4365-7956) |
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| a.m.achala s. attanayake botanist |
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| januka attanayake researcher, ORCID id # 0000-0001-7481-8698 |
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| renuka nilmini attanayake researcher (ORCID 0000-0002-4875-777X) |
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| lahiru attanayake Sri Lankan cricketer (b. 1999) |
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Mr, Sonal, Anton, Anula, Anoja, Aruna, Aruni, Arosh, Amela, Asiri, Supun, Asika, Akila, Ajith, Aesha, Chari, Cpisi, Kasun, Peter, Ruwan, Deepa, Asela, Sunil, Sunan, Suren, Ama, Lal, Lyn, Madu, Amal, Kuma, Prem, Raja, Ravi, Heli, Ivan, Yash, Upul, Mario, Manoj, Manji, Sanka, Samin, Sahan, Sasik, Shani, Daryn, and Dilan