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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 | Kazakhstan, Uzbekistan, Russia, Tajikistan, Azerbaijan |
| حیدر | Saudi Arabia, Iraq, Iran, Sudan, Afghanistan |
| Hajdar | Bosnia and Herzegovina, Serbia, Kosovo, Albania, North Macedonia |
| Гейдар | Kazakhstan, Kyrgyzstan, Russia, Ukraine |