Family name Althayr (Althayr 
) , around the world, is an extremely rare surname. The surname Althayr is habitual in Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname, and Brazil. Much more prevalently, Althayr is the forename as well as the last name.
Zao, Freire, Xavier, Machado, Cardoso, Crozara, Brandao, Junior, Geroldo, Fonseca, Dionisio, Espinola, Ferreira, Oliveira, Malucelli, Nazaret, Rodrigues, Castro, Soller, Saez, Leal, Lini, Lima, Moura, Silva, Aguiar, Alves, Reges, Gomes, Feijo, Filho, Wolff, Santos, Bruno, and Alexandrini