Cognomen Iashi (Iashi 
) , around the world, is a rare family name. The cognomen Iashi is habitual in Japan, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Iashi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iashi | Japan, India, Canada, Myanmar, Brazil |