Surname Khudoykulov (Khudoykulov 
, Худоикулов 
, Худойкулов 
) , around the world, is a rare last name. The cognomen Khudoykulov is characteristic of Uzbekistan, where it is a rare surname, Kyrgyzstan, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Khudoykulov | Uzbekistan |
| Худоикулов | Russia |
| Худойкулов | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |