Surname Juba (Juba 
, يوبا 
, Iuba 
) , across the world, is quite a common cognomen. The last name Juba is habitual in Algeria, where it is quite a rare surname, Egypt, and South Sudan. Not in comparison with a country's population, it is the most numerous in Egypt, Algeria, and the United States. Also, Juba is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Juba | Egypt, India, Japan, United States, Algeria |
| يوبا | Algeria, Morocco |
| Iuba | Spain, India, Nigeria, United States, Romania |
| Юба | Kyrgyzstan, Ukraine |
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juba ii crown prince of Numidia and King of Mauretania (c. 48 BC - AD 23), DZ (b. 52) |
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juba i king of Numidia, DZ (b. 85) |
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| adolf juba Hungarian physician, RS (b. 1864) |
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| juba adolf Hungarian neurologist, HU (b. 1909) |
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| stephen juba Canadian politician, CA (b. 1914) |
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| juba diez Businessman and former member of Louisiana House of Representatives, US (b. 1944) |
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| günther juba RS (b. 1943) |
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| juba kalamka American musician, US (b. 1970) |
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| titus desticius juba Roman consul |
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| jean h. juba botanist |
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| alphina juba Zimbabwean politician |
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| katherine m juba researcher (ORCID 0000-0002-0240-2690) |
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| stephen juba Kenyan taekwondoin, KE |
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| juba bouaziz researcher |
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| juba of mauretania Roman grammarian |
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