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Surname Onganya (Onganya
) , all around the world, is a rare last name. The cognomen Onganya is habitual in Sub-Saharan Africa, particularly Kenya, where it is a rare surname, the Democratic Republic of the Congo, and Nigeria, where it is an extremely rare surname. Much less frequently, Onganya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onganya | Democratic Republic of the Congo, Kenya, Nigeria, Thailand |