Family name Kainash (Kainash 
, Кайнаш 
) , across the world, is a very rare cognomen. The family name Kainash is habitual in Eastern Europe, particularly Ukraine, where it is a very rare surname, and Russia. Also, Kainash is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kainash | Russia, India |
| Кайнаш | Russia, Kazakhstan, Ukraine |