Surname Mwangangi (Mwangangi 
) , all around the world, is a common family name. The cognomen Mwangangi is habitual in Kenya, where it is quite a common surname, United Arab Emirates, where it is a rare surname, and Uganda. Not in comparison with a country's population, it most frequently occurs in Sub-Saharan Africa, particularly Kenya, Uganda, and Tanzania. Much less frequently, Mwangangi is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Mwangangi | United Arab Emirates, Uganda, United States, Kenya, Tanzania |
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john nzau mwangangi Kenyan long-distance runner, KE (b. 1990) |
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| o.m. mwangangi botanical collector |
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| joseph m mwangangi |
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| joseph mumo mwangangi |
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Mr, Jean, Jeff, Nick, Eric, Hawa, Fred, Moses, Mercy, Mumbe, Sarah, Sammy, Simon, Susan, Steve, Alice, Alvin, Agnes, Chris, Carol, Bosco, Brian, Joel, Kevin, Joan, Lucy, Ms, Sue, Ann, Ben, Ken, Dan, Job, Tom, Ian, Mary, Mark, Muli, Alex, Anne, Abel, Amos, Beth, Paul, Rose, Rita, Ruth, John, and Kitwa