Family name Orellanas (Orellanas 
) , throughout the world, is a very rare surname. The family name Orellanas is habitual in Latin America and the Caribbean, particularly Venezuela, where it is a rare surname, Argentina, where it is a very rare surname, and Chile, where it is an extremely rare surname. In absolute terms, it is commonest in Venezuela, Argentina, and the United States. Much less frequently, Orellanas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Orellanas | Chile, Spain, Venezuela, United States, Argentina |