Cognomen Kocaoğlu (Kocaoğlu 
, Коджаоглу 
) , in all the world, is a common last name. The surname Kocaoğlu is characteristic of Turkey, where it is quite a common surname, Saudi Arabia, where it is a rare surname, and China, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kocaoğlu | Germany, China, United States, Saudi Arabia, Turkey |
| Коджаоглу | Ukraine, Russia |
| osman kocaoğlu (b. 1878) |
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aziz kocaoğlu Turkish mayor, TR (b. 1948) |
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rıza kocaoğlu Turkish actor, TR (b. 1979) |
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| emre kocaoğlu (b. 1943) |
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| berrin kocaoğlu güçlü researcher |
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| gamze kocaoğlu researcher |
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| hakan kocaoğlu researcher |
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| nazan kocaoğlu researcher |
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| fırat kocaoğlu Turkish footballer, TR (b. 1988) |
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