Cognomen Duyar (Duyar 
, Дуяр 
, دويار) , all over the world, is a common last name. The family name Duyar is habitual in Turkey, where it is quite a common surname, Austria, where it is a rare surname, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Duyar | Myanmar, Algeria, Germany, Turkey, Austria |
| Дуяр | Russia, Kazakhstan, Ukraine |
| gürdal duyar Turkish sculptor (1935-2004), TR (b. 1935) |
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| hülya duyar Turkish-German actress, TR (b. 1970) |
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| mustafa duyar (b. 1970) |
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| izzet duyar researcher |
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| sezgi şahin duyar researcher (ORCID 0000-0001-5004-4077) |
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| cenap duyar |
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