Last name Ossai (Ossai 
) , all around the world, is a common cognomen. The last name Ossai is habitual in Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Niger, where it is a rare surname, and Ghana. Also, Ossai is the forename as well as the last name.
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| Ossai | United Kingdom, United States, Niger, Ghana, Nigeria |
| christopher ossai Nigerian boxer, NG (b. 1957) |
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| nicholas ossai Nigerian politician, NG |
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| emeka ossai Nigerian film actor, NG |
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| neville ossai Nigerian film director, NG |
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| ossai mustapha reuben Nigerian Managing Director, NG |
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| tamunonengiye-ofori ossai (b. 1975) |
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| joseph ossai Nigeria-born American football player (born 2000), NG |
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| rita ossai NG (b. 1995) |
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