Cognomen Groj (Groj 
) , all over the world, is a very rare surname. The surname Groj is characteristic of Morocco, where it is a very rare surname, Argentina, and the United Kingdom, where it is an extremely rare surname. Much less frequently, Groj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Groj | United Kingdom, India, Argentina, Morocco |