Family name Tonkovsky (Tonkovsky 
, Тонковский 
) , globally, is a very rare cognomen. The cognomen Tonkovsky is habitual in Russia, where it is a very rare surname, Ukraine, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Tonkovsky | United States |
| Тонковский | Russia, Ukraine |
Тонковски, and Тонковський