Last name Bwana (أب 
, Bwana 
, Bouana 
) , in the world, is quite a common cognomen. The last name Bwana is habitual in the Democratic Republic of the Congo, where it is quite a rare surname, Zimbabwe, where it is a rare surname, and Sudan. In absolute terms, it most frequently occurs in the Democratic Republic of the Congo, Sudan, and Egypt. Very seldom, Bwana is the forename as well as the last name.
| VARIANT | COUNTRY |
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| أب | Morocco, Egypt, Sudan, Syria, Algeria |
| Bwana | France, United States, Indonesia, Zimbabwe, Democratic Republic of the Congo |
| Bouana | Morocco, France, Cameroon, United States, Democratic Republic of the Congo |
| bwana tamu Sultan of Pate, KE |
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| veneranda m bwana researcher |
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| moses bwana researcher |
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| abdulhakim aboud bwana Kenyan politician |
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| steven j. bwana Tanzanian judge |
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| if, bwana American musician, US |
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| priska bwana researcher (ORCID 0000-0002-7368-5982) |
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| bwana heri ruler of the port town of Saadani, TZ |
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| bwana mkuu Kenyan sultan, KE |
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| handwalla bwana Kenyan association football player, KE (b. 1997) |
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Mr, Saidi, Simon, Agnes, Ayubu, Ahmed, Aaron, Carey, Cliff, Bonge, Bruce, Bhoke, Kerra, Kevin, Kembo, Denis, David, Damar, Grace, Linda, Linus, Loice, Samia, Mwita, Moses, Matti, Ali, Joe, Tom, Ian, Musa, Shee, Alex, Ange, Anna, Amos, Lydia, Bill, Duke, Jane, John, Joel, Jean, Elly, Ezra, Omar, Zola, Maria, Paul, and Janes