Surname Caastro (Caastro 
) , throughout the world, is a very rare family name. The last name Caastro is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare surname, Mexico, and Chile, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Latin America and the Caribbean, particularly Colombia, Mexico, and Brazil.
Alee, Marlon, Sandra, Arelyy, Brenda, Lucaas, Jaavii, Veliia, Ivaan, Ricardo, Liliana, Tatáá, Albertoo, Breendaa, Raymundo, Geovanni, Giovanna, Leticiia, Jennifer, Fidel, Hilda, Anaa, Anna, Beto, Keii, Raul, Gera, Jose, Viqii, Selee, Belen, Danny, David, Diana, Gonza, Josee, Jorge, Aguus, and Nereidaa