Surname Gab (Gab 
, Gabba 
, Gabb 
) , all around the world, is a common cognomen. The cognomen Gab is habitual in Belize, where it is quite a common surname, Botswana, where it is quite a rare surname, and Costa Rica. In absolute terms, it is the most numerous in India, Italy, and Egypt. Likewise, Gab is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gab | Egypt, Italy, United Kingdom, United States, India |
| Gabba | Argentina, Italy, United Kingdom, United States, India |
| Gabb | France, Italy, United Kingdom, United States, India |
| Gabben | Philippines |