Last name Сайар (Sayar 
, Sajar 
, Saiar 
) , in all the world, is a common family name. The cognomen Сайар is habitual in Turkey, where it is quite a common surname, Kuwait, where it is quite a rare surname, and Myanmar. Not in comparison with a country's population, the name is most common in Turkey, Myanmar, and India. More prevalently, Сайар is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sayar | Myanmar, India, Pakistan, Afghanistan, Turkey |
| Sajar | Kuwait, India, Saudi Arabia, Pakistan, Indonesia |
| Saiar | Brazil, Malaysia, India, Georgia, United States |
| Сайар | Russia, Kazakhstan, Ukraine |
Хамди, Хасянов, and Халилуллин