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Around the world, Hanniah (Hanniah
) is a very rare gender-neutral forename. The first name Hanniah is characteristic of Sub-Saharan Africa, particularly Nigeria, where it is an extremely rare epicene name. Likewise, Hanniah is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Hanniah | Philippines, Brazil, Malaysia, Nigeria, United States |