Last name Gusau (Gusau 
) , across the world, is a rare surname. The cognomen Gusau is habitual in Nigeria, where it is a rare surname, Israel, where it is a very rare surname, and the United Kingdom. Not in comparison with a country's population, it is the most numerous in Nigeria, the United States, and the United Kingdom. Likewise, Gusau is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gusau | United Kingdom, Nigeria, United States, India, Israel |
| aliyu mohammed gusau Nigerian politician, NG (b. 1943) |
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| hassan muhammad gusau Nigerian politician, NG (b. 1960) |
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| ibrahim m. gusau Nigerian sports administrator (b. 1964) |
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| mahdi aliyu gusau Deputy Governor Zamfara State, NG |
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| ibrahim gusau Nigerian politician, NG |
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