Cognomen גרוף (Groff 
, Grof 
, גרוף 
) , worldwide, is a common last name. The cognomen גרוף is habitual in Hungary, where it is quite a common surname, Luxembourg, and Slovakia. Measured by absolute frequency, it is commonest in the United States, Hungary, and Brazil. Much less frequently, גרוף is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Groff | Italy, United States, Canada, France, Brazil |
| Grof | Hungary, United States, France, Brazil, Slovakia |
| גרוף | Israel |