Last name Acuña Bueno (Acuña Bueno 
) , in the world, is a very rare cognomen. The last name Acuña Bueno is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Acuña Bueno | Ecuador, Chile |