Cognomen גז (Gez 
, גז ) , across the world, is quite a rare family name. The cognomen גז is habitual in Israel, where it is quite a common surname, Turkey, where it is quite a rare surname, and Argentina, where it is a rare surname. Much less frequently, גז is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gez | Israel, Argentina, Poland, Turkey, Germany |
| גז | Israel |
|
מטילדה גז Israeli politician, IL (b. 1918) |
|
|
יעקב גז Israeli naval officer, IL (b. 1952) |
|
|
ששי גז IL (b. 1954) |
|
|
יוסי גז IL (b. 1954) |
|
|
יובל גז IDF military personnel, IL (b. 1978) |
|
|
דור גז Israeli photographer, IL (b. 1980) |
|
| רונית גז Israeli writer and scholar, IL (b. 1958) |
|