Cognomen Idoko (Idoko 
) , in the entire world, is a common surname. The last name Idoko is characteristic of Nigeria, where it is quite a common surname, Niger, where it is quite a rare surname, and the United Kingdom, where it is a very rare surname. In absolute terms, this name is the most popular in Nigeria, Niger, and the United States. Likewise, Idoko is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Idoko | Niger, Nigeria, United States, United Kingdom, China |
| idoko s idoko researcher |
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| olubukola t idoko researcher (ORCID 0000-0002-8802-2946) |
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| zephani idoko Nigerian actress |
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| patrick idoko researcher |
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| candy idoko Nigerian tennis player (b. 1985) |
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| john alechenu idoko NG |
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| mathew sunday idoko (b. 1992) |
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