Cognomen Cayar (Cayar 
) , all over the world, is a rare surname. The cognomen Cayar is characteristic of Turkey, where it is a rare surname, Canada, where it is an extremely rare surname, and India. Much less frequently, Cayar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cayar | Turkey, United Kingdom, United States, India, Myanmar |