Cognomen Yashio (Yashio 
) , worldwide, is a very rare surname. The surname Yashio is characteristic of Nigeria, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States. Much more frequently, Yashio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yashio | Brazil, India, Japan, Nigeria, United States |