Cognomen Kashio (カシオ 
, Kashio 
) , globally, is a rare last name. The cognomen Kashio is habitual in Japan, where it is a very rare surname, Nigeria, and Brazil, where it is an extremely rare surname. More frequently, Kashio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| カシオ | Japan |
| Kashio | Brazil, Japan, India, Nigeria, China |
| tadao kashio JP (b. 1917) |
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| sho kashio Japanese malacologist, JP |
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| tomokazu kashio Ph.D. Kyoto University 2005 |
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| makiko kashio researcher |
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