Family name Demario (Demario 
, De Mario 
) , worldwide, is quite a rare surname. The last name Demario is habitual in Malaysia, where it is a rare surname, Italy, and Argentina. Measured by absolute frequency, it is the most numerous in the United States, Malaysia, and Italy. Likewise, Demario is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demario | Brazil, Malaysia, Argentina, United States, Italy |
| De Mario | Brazil, Argentina, France, United States, Italy |
| robert demario |
|