Cognomen ג'או (Geo 
, Jiao , ג'או 
) , across the world, is a widespread last name. The last name ג'או is habitual in China, where it is quite a common surname, Cayman Islands, and Romania (explore the name in all countries). In absolute terms, it most frequently occurs in China, Malaysia, and Romania. Much less frequently, ג'או is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Geo, Jiao | Romania, United States, India, Malaysia, China |
| ג'או | Israel |