Last name Gunasekera (Gunasekera 
) , all around the world, is a common family name. The surname Gunasekera is habitual in Sri Lanka, where it is quite a common surname, Australia, where it is quite a rare surname, and Qatar. Not in comparison with a country's population, it is the most numerous in Sri Lanka, Australia, and Kenya.
| VARIANT | COUNTRY |
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| Gunasekera | United Arab Emirates, United States, Australia, Kenya, Sri Lanka |
| abraham mendis gunasekera Sri Lankan academic (b. 1869) |
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| p. r. gunasekera (b. 1897) |
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| bennet gunasekera Sri Lankan entrepreneur, LK (b. 1919) |
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| u. n. gunasekera Sri Lankan civil engineer, LK (b. 1922) |
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| j. g. gunasekera (b. 1925) |
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| r. m. gunasekera (b. 1933) |
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| d. m. gunasekera (b. 1934) |
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| mahen gunasekera (b. 1953) |
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| jagath gunasekera researcher |
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| malina gunasekera Peerage person ID=250996 |
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| d. d. gunasekera Ceylonese businessman and politician |
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| h. m. gunasekera Sri Lankan broadcaster |
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| thilak gunasekera Ph.D. Wayne State University 1997 |
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| aster gunasekera Peerage person ID=250995 |
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| sanjeeva gunasekera researcher |
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