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 | Belarus, China, United States, Russia, Ukraine |
| Томашевский | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |