Last name Oquendo Avendaño (Oquendo Avendaño 
) , in the entire world, is a very rare cognomen. The surname Oquendo Avendaño is habitual in Ecuador, where it is a very rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Oquendo Avendaño | Ecuador, Spain |