Cognomen Cusmaan (Cusmaan 
) , around the globe, is quite a rare family name. The surname Cusmaan is characteristic of Somalia, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Yemen, where it is a very rare surname. Likewise, Cusmaan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cusmaan | Yemen, United States, Saudi Arabia, United Kingdom, Somalia |