Surname Siriwardhana (Siriwardhana 
) , in the entire world, is quite a common cognomen. The surname Siriwardhana is habitual in Sri Lanka, where it is quite a common surname, United Arab Emirates, where it is a rare surname, and Australia, where it is a very rare surname. Much less frequently, Siriwardhana is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Siriwardhana | United Kingdom, United Arab Emirates, United States, Australia, Sri Lanka |
| w. l. siriwardhana Sri Lankan volleyball player (1938-2010), LK (b. 1938) |
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| chathura siriwardhana researcher (ORCID 0000-0002-5424-003X) |
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| chathura siriwardhana researcher (ORCID 0000-0001-7938-7217) |
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| leon s siriwardhana researcher (ORCID 0000-0001-8763-5209) |
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| dhammika deepani siriwardhana researcher ORCID ID = 0000-0003-2313-3095 |
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Asha, Nalin, Nipun, Nuwan, Hemla, Viraj, Isuru, Udaya, Saliya, Saumya, Shalin, Shashi, Sidath, Sumith, Sujith, Andrew, Anusha, Anjana, Asanka, Asitha, Akhila, Ayesha, Namal, Ayomal, Jamee, Gayan, Daya, Gaya, Upul, Manoj, Saman, Sahan, Shane, Anura, Aruna, Amara, Amila, Asela, Ajith, Karla, Kamal, Kasun, Pasan, Piumi, Ruwan, Dilan, Ganga, Gihan, and Cháminda