Cognomen Montañia (Montañia 
) , throughout the world, is a rare family name. The last name Montañia is habitual in Latin America and the Caribbean, particularly Argentina, where it is a rare surname, and Chile, where it is a very rare surname.
Rosa, Javier, Tomasa, Nelson, Elvira, Estela, Victor, Soledad, Alberto, Claudia, Claudio, Betania, Paulina, Rosalia, Jacinta, Joaquin, Eduardo, Hilario, Isidoro, Yolanda, Santiago, Angelica, Karina, Braian, Carlos, Andrea, Dany, Luis, Juan, Hugo, Maria, Mayra, Angel, Bruno, Kevin, Pablo, Catalina, Delia, Jorge, Jesus, Julia, Julio, Nieve, Ester, Oscar, Miguel, Sergio, Alicia, Diego, and Cristian