Globally, Calhau (Calhau 
) is a very rare gender-neutral given name. The first name Calhau is habitual in Portugal, where it is a very rare boy's name, and France, where it is a very rare unisex name. Much more frequently, Calhau is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Calhau | Germany, Portugal, United States, France, Brazil |
| conceição calhau Portuguese nutritionist, PT |
|