Cognomen Sinenkiy (Sinenkiy 
, Синенький 
) , all around the world, is a rare surname. The surname Sinenkiy is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Czechia, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sinenkiy | Czechia |
| Синенький | Kazakhstan, Ukraine, Russia |