Cognomen Гастон (Gaston 
, Gastón 
, Gasto 
) , in the entire world, is a common last name. The cognomen Гастон is habitual in Latin America and the Caribbean, particularly Saint Lucia, where it is quite a common surname, Uruguay, and Argentina (explore the name in all countries). Not in comparison with a country's population, the name is most common in Argentina, the United States, and Mexico. More prevalently, Гастон is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gaston | Argentina, United States, Tanzania, Democratic Republic of the Congo, France |
| Gastón | Mexico, Argentina, United States, France, Uruguay |
| Gasto | Argentina, Philippines, United States, Tanzania, France |
| Гастон | Ukraine, Russia |