Family name Jayaweera (Jayaweera 
) , around the globe, is a common cognomen. The family name Jayaweera is characteristic of Sri Lanka, where it is a common surname, Qatar, where it is quite a rare surname, and United Arab Emirates. Measured by absolute frequency, it is the most numerous in Sri Lanka, Australia, and United Arab Emirates. Much less frequently, Jayaweera is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Jayaweera | Australia, United Arab Emirates, Bangladesh, Sri Lanka, Qatar |
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jayaweera kuruppu politician, LK (b. 1908) |
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| don martin arthur jayaweera botanist (1912-1982) (b. 1912) |
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dilith jayaweera Sri Lankan entrepreneur and lawyer, LK (b. 1967) |
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| neville jayaweera Sri Lankan civil servant (1930-2020), LK (b. 1930) |
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| jayaweera bandara Sri Lankan cricketer, LK (b. 1970) |
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| ruvani t jayaweera researcher (ORCID 0000-0003-0609-9892) |
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| jayaweera astana of kandy king of Kandy |
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| sudharman k. jayaweera Ph.D. Princeton University 2003 |
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| piyankarage viraj vishwakantha jayaweera researcher |
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| kaushalya jayaweera researcher (ORCID 0000-0003-3780-0901) |
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| pradeep jayaweera researcher |
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| hirosha k jayaweera researcher |
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| jayaweera a lakshika anjalee researcher |
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| jayaweera arachchige asela sampath jayaweera researcher |
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| mahesh jayaweera researcher |
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