Surname Emategui (Emategui 
) , worldwide, is a rare family name. The last name Emategui is habitual in Latin America and the Caribbean, particularly Paraguay, where it is quite a rare surname, Argentina, where it is a very rare surname, and Brazil, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Emategui | Brazil, Germany, Paraguay, Argentina |