Cognomen Хайдерь (Haider 
, Khaider 
, Хайдерь 
) , globally, is a widespread family name. The surname Хайдерь is habitual in Pakistan, where it is a common surname, United Arab Emirates, and Bahrain (explore the name in all countries). In absolute terms, the name is most common in Pakistan, Bangladesh, and Iraq. Also, Хайдерь is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Haider | Bangladesh, Pakistan, Saudi Arabia, Iraq, India |
| Khaider | Pakistan, Indonesia, United States, Malaysia, India |
| Хайдерь | Russia |
| Khayder | Malaysia, Morocco |