Last name Omoniyi (Omoniyi 
) , worldwide, is a common surname. The family name Omoniyi is characteristic of Nigeria, where it is quite a common surname, Iceland, where it is quite a rare surname, and Niger. In absolute terms, it is commonest in Nigeria, Niger, and the United Kingdom. Also, Omoniyi is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Omoniyi | Niger, United Kingdom, United States, Nigeria, Indonesia |
| tope omoniyi NG (b. 1956) |
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| folashade omoniyi Nigerian businesswoman, NG (b. 1968) |
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| oluwadamilola solabi omoniyi researcher |
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