Surname Montañ (Montañ 
) , all around the world, is a very rare family name. The family name Montañ is habitual in Latin America and the Caribbean, particularly Bolivia, where it is a rare surname, Colombia, where it is a very rare surname, and Argentina, where it is an extremely rare surname. Very seldom, Montañ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Montañ | Colombia, Argentina, Bolivia, Mexico, Ecuador |