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Cognomen Haua (Haua
, Хауа
) , all over the world, is a rare surname. The last name Haua is characteristic of Montenegro, where it is quite a rare surname, Papua New Guinea, and New Zealand, where it is a rare surname. In absolute terms, it is the most numerous in Papua New Guinea, Mexico, and India. More frequently, Haua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Haua | Papua New Guinea, Brazil, Mexico, India, Mozambique |
| Хауа | Kazakhstan, Russia, Ukraine |