Family name Tomashevskiy (Tomashevskiy 
, Томашевский 
) , globally, is quite a rare surname. The cognomen Tomashevskiy is characteristic of Belarus, where it is quite a rare surname, Russia, and Kazakhstan, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tomashevskiy | Russia, China, Belarus, Ukraine, United States |
| Томашевский | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |