Cognomen Язон (Jazon 
, Yazon 
, Язон 
) , all around the world, is quite a rare surname. The surname Язон is habitual in Philippines, where it is quite a rare surname, Syria, where it is a rare surname, and Georgia. In absolute terms, the name is most common in Philippines, Syria, and France. Likewise, Язон is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jazon | Philippines, France, United States, Myanmar, Brazil |
| Yazon | Saudi Arabia, Syria, Philippines, United States, Brazil |
| Язон | Russia, Ukraine |
| Iazon | France, Georgia |