Cognomen Nsiah (Nsiah 
) , all over the world, is a common last name. The surname Nsiah is characteristic of Ghana, where it is quite a common surname, Libya, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, it is commonest in Ghana, the United States, and the United Kingdom. Much less frequently, Nsiah is the forename as well as the last name.
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| Nsiah | United Kingdom, Tanzania, United States, Ghana, Egypt |
| christian nsiah Ghanaian sprinter. Now a Business Economics professor at Black Hills State University (BHSU) in Spearfish, SD., GH (b. 1975) |
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| vida nsiah Ghanaian sprinter and hurdler, GH (b. 1976) |
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| comfort nsiah researcher |
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| nsiah asare Ghanaian medical officer, GH |
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| paul nsiah researcher |
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| lydia nsiah Austrian visual artist and filmmaker, AT (b. 1985) |
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| philippe nsiah French footballer, FR (b. 1994) |
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