Surname Wijesundara (Wijesundara 
) , all over the world, is a common cognomen. The last name Wijesundara is habitual in Sri Lanka, where it is quite a common surname, Oman, where it is a rare surname, and Qatar. Not in comparison with a country's population, this name is the most popular in Sri Lanka, United Arab Emirates, and Australia. Very seldom, Wijesundara is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Wijesundara | Australia, United Arab Emirates, Indonesia, Sri Lanka, Saudi Arabia |
| douglas siril abeywickrama wijesundara Sri Lankan botanist, LK (b. 1955) |
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| w m a b wijesundara researcher |
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| jessica g wijesundara researcher |
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| danushka wijesundara researcher |
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Mr, Ajith, Kamal, Kasun, Kasup, Kavin, Piumi, Punya, Ramya, Rohan, Ayuni, Ridma, Dasun, Dilum, Dulan, Gayan, Gihan, Jeeva, Namal, Nalin, Nipun, Ruwan, Nuwan, Asela, Amali, Ms, Anu, Ama, Don, Jay, Mihi, Savi, Amal, Karu, Amila, Roma, Upul, Manoj, Muthu, Saman, Suren, Supun, Aloka, Anura, Aruni, Gaya, and Hansi