Cognomen Grgorinic (Grgorinic 
) , all around the world, is a very rare family name. The cognomen Grgorinic is habitual in Slovenia, where it is a rare surname, Croatia, and Canada, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Slovenia, Croatia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Grgorinic | Slovenia, United States, Croatia, Canada |