Surname Gustavo Brayan (Gustavo Brayan 
) , in all the world, is an extremely rare last name. The cognomen Gustavo Brayan is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Gustavo Brayan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gustavo Brayan | Chile, Peru |