Worldwide, Okolo (Okolo 
) is a common epicene given name. The first name Okolo is habitual in Nigeria, where it is quite a common unisex name, the United States, where it is an extremely rare unisex name, and China, where it is an extremely rare boy's name. Also, Okolo is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Okolo | Niger, Nigeria, United States, Cameroon, Democratic Republic of the Congo |
| chukwuemeka arinze okolo researcher, ORCID id # 0000-0002-8959-5615 |
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| chukwuemeka calistus okolo researcher (ORCID 0000-0002-3561-5211) |
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| winfrey okolo lawyer, model, TV presenter, NG |
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| ikani okolo politician, NG |
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