Last name Vaca Ibarra (Vaca Ibarra 
) , throughout the world, is a very rare cognomen. The last name Vaca Ibarra is habitual in Ecuador, where it is a rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vaca Ibarra | Spain, Ecuador |
Mary Wendy, and Ericka Susana