Last name Tkachik (Ткачик 
, Tkachik 
) , in the entire world, is quite a rare family name. The cognomen Tkachik is habitual in Eastern Europe, particularly Ukraine, where it is quite a rare surname, Belarus, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ткачик | Kazakhstan, Ukraine, Belarus, Russia |
| Tkachik | Russia, Belarus, United States, Canada, Ukraine |
| v.p. tkachik botanist |
|