Cognomen Gagos (Gagos 
) , across the world, is a rare last name. The surname Gagos is habitual in Hungary, where it is a rare surname, Romania, and Greece. In absolute terms, it is commonest in Ethiopia, Poland, and Romania. Likewise, Gagos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gagos | Poland, Ethiopia, Hungary, United States, Romania |
| traianos gagos American papyrologist, US (b. 1960) |
|