Surname Ionar (Ionar 
) , worldwide, is an extremely rare family name. The cognomen Ionar is habitual in Latin America and the Caribbean, particularly Argentina, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and Brazil. Predominantly, Ionar is the forename as well as the last name.
Melo, Amaral, Barros, Borges, Donola, Duarte, Farias, Franca, Marques, Moreira, Santana, Almeida, Andrade, Pereira, Ribeiro, Ventura, Carvalho, Gerhardt, Ferreira, Oliveira, Magalhaes, Rodrigues, Araujo, Soares, Santos, Felix, Cruz, Rosa, Reis, Dias, Gama, Lima, Matos, Moura, Santo, Silva, Nascimento, Sousa, Alves, Assis, Costa, Pelka, Ramos, Rocha, Retto, Gomes, Jesus, Viana, Souza, and Mascarenhas