Surname Effah (Effah 
) , across the world, is a common cognomen. The cognomen Effah is characteristic of Sub-Saharan Africa, particularly Ghana, where it is quite a common surname, Mauritius, where it is quite a rare surname, and Nigeria, where it is a rare surname. Not in comparison with a country's population, it is commonest in Ghana, Nigeria, and the United States. Much less frequently, Effah is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Effah | Libya, United Kingdom, United States, Ghana, Nigeria |
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charline effah Gabonese writer and teacher, GA (b. 1977) |
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enoch effah French boxer, FR (b. 1983) |
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belinda effah Nigerian actress, NG (b. 1989) |
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| anthony effah Ghanaian politician, GH (b. 1959) |
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| professor john effah Ghanaian Associate Professor at the university of Ghana, GH |
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| effah leiylena yaacob researcher |
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| felix effah researcher |
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| clement yaw effah researcher |
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| sam effah Canadian sprinter, CA (b. 1988) |
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| benjamin effah |
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