Last name Mustachi (Mustachi 
) , globally, is a very rare family name. The surname Mustachi is habitual in Canada, where it is a very rare surname, France, where it is an extremely rare surname, and Italy. Measured by absolute frequency, it most frequently occurs in the United States, Canada, and France.
| VARIANT | COUNTRY |
|---|---|
| Mustachi | Canada, France, Argentina, Italy, United States |