Cognomen Хайруллин (Хайруллин 
, Khairullin 
, Hajrullin 
) , globally, is a common surname. The cognomen Хайруллин is habitual in Russia, where it is quite a common surname, Kazakhstan, where it is quite a rare surname, and Azerbaijan. In absolute terms, the name is most common in Russia, Kazakhstan, and Uzbekistan.
| VARIANT | COUNTRY |
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| Хайруллин | Kazakhstan, Azerbaijan, Kyrgyzstan, Russia, Uzbekistan |
| Khairullin | Kazakhstan, United States, Russia, Uzbekistan, Estonia |
| Hajrullin | Bulgaria |
| Khayrullin | France, Canada, United States, Russia, Estonia |
Chairullin, Hairullin, Hayrullin, and Khairoulline
| хайруллин баязит RU (b. 1871) |
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хайруллин, ильдар зиннурович RU (b. 1950) |
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хайруллин, айрат назипович Russian politician (1970-2020), RU (b. 1970) |
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| хайруллин, халил зинатуллович RU (b. 1920) |
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| хайруллин, хабибулла набиуллович RU (b. 1923) |
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ильдар амирович хайруллин Russian chess player, RU (b. 1990) |
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| хайруллин, абдель-барый хабиевич RU (b. 1955) |
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| хайруллин, газинур гарифзянович RU (b. 1961) |
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| марат наильевич хайруллин Russian footballer, RU (b. 1984) |
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| хайруллин, ринат рафаилович association football player, KZ (b. 1994) |
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| хайруллин, марат фанисович ice hockey player (1996-), RU (b. 1996) |
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| хайруллин, тимур артурович ice hockey player, RU |
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