Family name Сайфиддинов (Сайфиддинов 
, Sayfiddinov 
) , around the world, is quite a rare surname. The family name Сайфиддинов is habitual in Uzbekistan, where it is quite a rare surname, Azerbaijan, and Kyrgyzstan, where it is a rare surname. In absolute terms, it is commonest in Uzbekistan, Azerbaijan, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Сайфиддинов | Kyrgyzstan, Azerbaijan, Kazakhstan, Uzbekistan, Russia |
| Sayfiddinov | Uzbekistan, Russia, United States, Malaysia, Romania |
| шарофиддин сайфиддинов Soviet composer (1929-2015), TJ (b. 1929) |
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| мансур сайдалиевич сайфиддинов TJ (b. 1954) |
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