Surname Dennias (Dennias 
) , worldwide, is a rare last name. The surname Dennias is habitual in Zimbabwe, where it is a rare surname, Nigeria, where it is an extremely rare surname, and Philippines. Very seldom, Dennias is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dennias | South Africa, Philippines, Brazil, Zimbabwe, Nigeria |