Cognomen גוסטב (Gustavo 
, Gustav 
, Gustave 
, and others...) , all around the world, is a widespread last name. The last name גוסטב is habitual in Latin America and the Caribbean, particularly Saint Lucia, where it is a common surname, Mexico, and Honduras (explore the name in all countries). Measured by absolute frequency, the name is most common in Latin America and the Caribbean, particularly Mexico, Argentina, and Venezuela. More prevalently, גוסטב is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gustavo | Germany, Brazil, Mexico, Paraguay, Argentina |
| Gustav | Germany, Brazil, Mexico, Venezuela, Argentina |
| Gustave | Germany, Brazil, Venezuela, Argentina, Colombia |
| Gustaf | Germany, Brazil, Mexico, United States, Sweden |
| גוסטב | Israel |