Cognomen Grancic (Grancic 
) , in the entire world, is a rare surname. The cognomen Grancic is characteristic of Slovakia, where it is quite a rare surname, Czechia, where it is a rare surname, and Croatia. Measured by absolute frequency, it is the most numerous in Slovakia, Czechia, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Grancic | Argentina, Slovakia, Czechia, Germany, Croatia |