Surname Шейх (Sheikh 
, Sheik 
, Cheikh 
) , in the entire world, is a widespread cognomen. The cognomen Шейх is habitual in United Arab Emirates, where it is a common surname, Somalia, and Mauritania (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Southern Asia, particularly India, Pakistan, and Bangladesh. Also, Шейх is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sheikh | Bangladesh, Somalia, Pakistan, India, Saudi Arabia |
| Sheik | Bangladesh, Kenya, United Arab Emirates, Somalia, Saudi Arabia |
| Cheikh | United Arab Emirates, Egypt, India, Mauritania, Saudi Arabia |
| Шейх | Russia, Belarus, Kyrgyzstan |