Globally, Onintza (Onintza 
) is a rare gender-neutral forename. The first name Onintza is habitual in Southern Europe, particularly Spain, where it is a rare gender-neutral name. Very seldom, Onintza is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Onintza | Spain, Mexico, Finland, Honduras, United States |
|
onintza enbeita Spanish journalist, writer and bertsolari, ES (b. 1979) |
|
|
onintza etxebeste liras basque artist, ES (b. 1993) |
|
| onintza lasa arteaga Spanish politician, ES (b. 1972) |
|
|
| onintza sagredo researcher |
|
|
| onintza odriozola irizar |
|
|
| onintza belategi unzueta |
|