Family name Olaiya (Olaiya 
) , in the world, is a common last name. The surname Olaiya is habitual in Nigeria, where it is quite a common surname, Niger, where it is quite a rare surname, and Ireland, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Nigeria, Niger, and the United Kingdom. Likewise, Olaiya is the forename as well as the last name.
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| Olaiya | United Kingdom, United States, Niger, Nigeria, Algeria |
| victor olaiya Nigerian musician, NG (b. 1930) |
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| moji olaiya Nigerian actress and singer, NG (b. 1975) |
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| muideen t olaiya researcher (ORCID 0000-0002-4070-0533) |
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| ibiwunmi omotayo olufunke felicity olaiya British-Nigerian singer, GB |
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| oluwaseun olaiya researcher (ORCID 0000-0002-2455-3959) |
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| babatunde olaiya researcher |
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| niyi gideon olaiya researcher |
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| bo olaiya college basketball player (2002–2002) Texas-Arlington |
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| femi olaiya Nigerian CEO, NG |
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| emmanuel olaiya |
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