Last name Ostáriz (Ostáriz 
) , all around the world, is an extremely rare family name. The surname Ostáriz is habitual in Southern Europe, particularly Spain, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ostáriz | Spain |
| tomás ostáriz ES (b. 1927) |
|
|
| verónica aranaz ostáriz researcher (ORCID 0000-0002-0386-4627) |
|