Last name Хайруддин (Хайруддин 
) , throughout the world, is an extremely rare cognomen. The cognomen Хайруддин is habitual in Kyrgyzstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. Much more prevalently, Хайруддин is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Хайруддин | Azerbaijan, Kazakhstan, Russia, Kyrgyzstan, Tajikistan |
Chairuddin, Hairuddin, Hajruddin, Hayruddin, Khairuddin, and Khayruddin