Family name Hirias (Hirias 
) , across the world, is an extremely rare cognomen. The surname Hirias is habitual in Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname. More prevalently, Hirias is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hirias | Brazil, Venezuela |
| antonio pérez de hirias Roman Catholic bishop (1761-1842) (b. 1761) |
|