Surname Sinayskiy (Sinayskiy 
, Синаыский 
, Синайский 
) , around the world, is a rare family name. The cognomen Sinayskiy is characteristic of Russia, where it is a rare surname, Belarus, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sinayskiy | United States |
| Синаыский | Russia |
| Синайский | Russia, Belarus |
| ilya sinayskiy researcher |
|