Last name Piyasena (Piyasena 
) , all over the world, is quite a rare surname. The last name Piyasena is habitual in Sri Lanka, where it is quite a common surname, Australia, where it is a rare surname, and Singapore. In absolute terms, it most frequently occurs in Sri Lanka, Australia, and Indonesia. Also, Piyasena is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Piyasena | Indonesia, United Kingdom, Sri Lanka, Australia, United States |
| r. piyasena badminton player, LK (b. 1943) |
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| menake e piyasena researcher ORCID ID = 0000-0002-5863-8272 |
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| thisun b h piyasena researcher |
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