Last name Demania (Demania 
) , around the globe, is a very rare surname. The family name Demania is characteristic of Georgia, where it is a rare surname, the United States, where it is an extremely rare surname, and Philippines. Much less frequently, Demania is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demania | Philippines, Georgia, United States |