Cognomen Iwu (Iwu 
) , in the world, is quite a common last name. The last name Iwu is characteristic of Nigeria, where it is quite a rare surname, Ghana, where it is a rare surname, and Indonesia. Also, Iwu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iwu | Ghana, United Kingdom, United States, Nigeria, Indonesia |
| maurice iwu Nigerian academic, NG (b. 1950) |
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| chidozie declan iwu researcher |
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| chinwe juliana iwu researcher (ORCID 0000-0003-0765-7497) |
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| adama iwu |
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| emmanuel iwueke nigerian comedian and doctor, NG (b. 1991) |
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