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Family name Hajdar (Хайдар
, حیدر
, Hajdar
) , all around the world, is quite a rare surname. The last name Hajdar is habitual in Bosnia and Herzegovina, where it is quite a common surname, North Macedonia, and Kyrgyzstan, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Bosnia and Herzegovina, Afghanistan, and Iraq. More frequently, Hajdar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Хайдар | Uzbekistan, Kazakhstan, Tajikistan, Russia, Azerbaijan |
| حیدر | Saudi Arabia, Iran, Afghanistan, Iraq, Sudan |
| Hajdar | North Macedonia, Kosovo, Bosnia and Herzegovina, Serbia, Albania |
| Гейдар | Ukraine, Russia, Kyrgyzstan, Kazakhstan |