Family name Ратькович (Ратькович 
) , around the globe, is a very rare surname. The family name Ратькович is habitual in Belarus, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Belarus, Kazakhstan, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Ратькович | Kazakhstan, Russia, Ukraine, Belarus |
Ratkovich, and Ratkovitch