Cognomen Kumarasiri (Kumarasiri 
) , globally, is a common surname. The cognomen Kumarasiri is characteristic of Sri Lanka, where it is quite a common surname, Qatar, where it is quite a rare surname, and United Arab Emirates. In absolute terms, the name is most common in Sri Lanka, United Arab Emirates, and Saudi Arabia. Very seldom, Kumarasiri is the forename as well as the last name.
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| Kumarasiri | Saudi Arabia, Sri Lanka, United Arab Emirates, Qatar, Indonesia |
| p. kumarasiri politician, LK (b. 1919) |
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| ananda kumarasiri politician, LK (b. 1954) |
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| kumarasiri rathnayake Sri Lankan politician (b. 1967) |
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| akila kumarasiri researcher ORCID ID = 0000-0001-5508-9610 |
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| kumarasiri samaranayake Ph.D. University of Minnesota-Minneapolis 1988 |
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| k. p. s. kumarasiri Sri Lankan politician |
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| pdj kumarasiri Sri Lanka Air Force air marshal |
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| kumarasiri konthasinghe researcher |
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| p v r kumarasiri researcher |
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Sri, Ravin, Dammi, Dayan, Dasun, Dylan, Gayan, Layan, Tissa, Namal, Ranil, Nirma, Nimal, Nipun, Nihal, Nuwan, Vikum, Isuru, Yohan, Udaya, Udeni, Nisal, Malika, Kusal, Benly, Lal, Jed, Anil, Deva, Dinu, Igor, Upul, Saman, Sachi, Kasun, Supun, Aruna, Amila, Amith, Ashan, Asela, Asoka, Akila, Ajith, Chami, Anura, and Malith