Cognomen Weerasuriya (Weerasuriya 
) , around the world, is quite a common family name. The surname Weerasuriya is habitual in Sri Lanka, where it is quite a common surname, Qatar, where it is quite a rare surname, and Kuwait, where it is a rare surname. In absolute terms, the name is most common in Sri Lanka, the United States, and Saudi Arabia. Much less frequently, Weerasuriya is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Weerasuriya | Australia, United Arab Emirates, United States, Sri Lanka, Saudi Arabia |
| thushara weerasuriya Sri Lankan cricketer, LK (b. 1967) |
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| channa weerasuriya Bangladeshi general (b. 1968) |
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| lihini weerasuriya tennis player (1972-), LK (b. 1972) |
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| chathika k weerasuriya researcher |
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| ru weerasuriya video game art director |
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| lakvin weerasuriya Sri Lankan cricketer, LK |
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Mr, Amila, Ashan, Asiri, Asoka, Akila, Ajith, Basha, Kandy, Kasun, Kelly, Kelum, Kumar, Prasa, Rangi, Ranil, Rohan, Ruvil, Ruvan, Ruwan, Aruni, Aruna, Anoma, Supun, Ru, Anu, Dee, Don, Lee, Uma, Cisi, Ravi, Rona, Divan, Noel, Upul, Manoj, Saman, Shane, Shaun, Shyam, Simon, Suren, Sunil, Edie, and Gayan