Cognomen Olar (Olar 
, Оларь 
, Олар ) , worldwide, is quite a common surname. The family name Olar is habitual in Eastern Europe, particularly Romania, where it is quite a common surname, Ukraine, where it is quite a rare surname, and Moldova. Not in comparison with a country's population, it is the most numerous in Romania, Philippines, and Ukraine. Much less frequently, Olar is the forename as well as the last name.
| olar küregen Mongol general (b. 1200) |
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florentina olar Romanian footballer, RO (b. 1985) |
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| olar pullisaar Estonian medical researcher, EE (b. 1950) |
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| corneliu olar Romanian politician from Horea, Alba County, RO (b. 1959) |
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| adriana olar researcher |
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| loredana e olar researcher |
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| rodica olar researcher, RO |
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| ovidiu-victor olar researcher |
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| corina olar association football player, RO (b. 1984) |
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