Surname Iauko (Iauko 
) , across the world, is a rare family name. The cognomen Iauko is characteristic of Melanesia, particularly Vanuatu, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Iauko | Vanuatu |
| harry iauko Vanuatuan politician |
|
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| pascal iauko Vanuatu politician, VU (b. 1986) |
|