Surname جيف (Jeff 
, Geoff , Geof ) , throughout the world, is a common cognomen. The last name جيف is habitual in Brunei, where it is quite a common surname, Luxembourg, and Macao. Measured by absolute frequency, it is commonest in Sub-Saharan Africa, particularly Kenya, Nigeria, and Ghana. Much more prevalently, جيف is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Geof, Jeff, Geoff | United Kingdom, Kenya, Australia, United States, Canada |
| جيف | Egypt |