Family name Монтанья (Montagna 
, Монтанья 
, Montañà 
) , around the world, is a common last name. The family name Монтанья is characteristic of Italy, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Argentina. In absolute terms, it is commonest in Italy, Brazil, and Argentina. Very seldom, Монтанья is the forename as well as the last name.