Family name Carihua (Carihua 
) , around the world, is a rare last name. The cognomen Carihua is characteristic of Peru, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Carihua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carihua | Peru, United States |