Last name Aiua (Aiua 
) , around the world, is a very rare surname. The last name Aiua is habitual in Malaysia, where it is a very rare surname, Brazil, where it is an extremely rare surname, and India. Very seldom, Aiua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aiua | India, United States, Brazil, Malaysia |