Cognomen Kashiwai (Kashiwai 
) , all around the world, is a very rare family name. The family name Kashiwai is habitual in the United States, where it is an extremely rare surname, Brazil, and China. Also, Kashiwai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kashiwai | India, China, Brazil, United States |