All around the world, Ciau (Ciau 
) is a rare epicene given name. The forename Ciau is habitual in Romania, where it is a rare male name, and Indonesia, where it is a very rare gender-neutral name. Much more frequently, Ciau is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ciau | Mexico, Indonesia, United States, Malaysia, Romania |