Throughout the world, 川入 (川入 
, Kawairi 
) is a very rare feminine forename. The forename 川入 is characteristic of Eastern Asia, particularly China, where it is an extremely rare girly name. Very seldom, 川入 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 川入 | China |
| Kawairi | Brazil |