Cognomen Ajasin (Ajasin 
) , around the globe, is a rare surname. The last name Ajasin is habitual in Nigeria, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States. Also, Ajasin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ajasin | United Kingdom, Nigeria, Canada, United States, India |
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michael adekunle ajasin Nigerian politician, NG (b. 1908) |
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| david o ajasin researcher (ORCID 0000-0003-1061-1860) |
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| abayomi ajasin college basketball player (2007–2007) Arkansas State |
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