Cognomen Wanyonyi (Wanyonyi 
) , in all the world, is a common family name. The surname Wanyonyi is characteristic of Sub-Saharan Africa, particularly Kenya, where it is quite a common surname, Uganda, where it is a rare surname, and Tanzania, where it is a very rare surname. Very seldom, Wanyonyi is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Wanyonyi | Tanzania, United States, Australia, Kenya, Uganda |
| jehovah wanyonyi Kenyan who believes himself to be God (b. 1924) |
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| kristina wanyonyi researcher ORCID ID = 0000-0003-2320-6805 |
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| reginalda nakhumicha wanyonyi Kenyan politician |
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| ferdinard kevin wanyonyi Kenyan politician, KE |
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| jim wanyonyi Kenyan Politician, KE |
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| stephen s wanyonyi researcher ORCID ID = 0000-0003-2895-5565 |
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| emmanuel wanyonyi Kenyan middle-distance runner |
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Mr, Levy, Lucy, Jack, John, Juma, Nssy, Edna, Eric, Eryn, Levi, Emma, Maria, Mappm, Moses, Mercy, Sarah, Sammy, Silas, Simon, Susan, Fred, Ruth, Rose, Paul, Ms, Sam, Ann, Ben, Dan, Joy, Job, Tom, Eng, Ian, Mary, Mark, Mike, Musa, Suzi, Alex, Anne, Abel, Amos, Ahsm, Boaz, Steve, and Alice