Last name Синявскы (Синявскы 
, Synyavsky, Siniavsky 
) , around the world, is a very rare cognomen. The surname Синявскы is characteristic of Israel, where it is a very rare surname, Argentina, and Russia, where it is an extremely rare surname. In absolute terms, it is commonest in the United States, Russia, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Синявскы | Russia |
| Siniavsky | Brazil, Canada, United States, Argentina, Israel |