Last name Osuagwu (Osuagwu 
) , in all the world, is quite a common cognomen. The last name Osuagwu is characteristic of Nigeria, where it is quite a rare surname, Niger, where it is a rare surname, and Ireland. In absolute terms, the name is most common in Nigeria, the United States, and Niger. Also, Osuagwu is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Osuagwu | Niger, Nigeria, United States, United Kingdom, South Africa |
| uchechukwu l. osuagwu researcher |
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| victor osuagwu Nigerian actor, NG |
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| ferdnand c osuagwu researcher (ORCID 0000-0002-5900-6162) |
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| nelson osuagwu researcher (ORCID 0000-0002-4109-7043) |
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| angelina osuagwu Nigerian athletics competitor, NG |
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| linus osuagwu Nigerian university teacher, NG |
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| darnell osuagwu South African rugby union player (b. 1999) |
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