Cognomen Iohana (Iohana 
) , around the globe, is a very rare family name. The cognomen Iohana is characteristic of Romania, where it is a rare surname, Georgia, where it is a very rare surname, and Venezuela. Not in comparison with a country's population, it is the most numerous in Romania, Mexico, and Georgia. Predominantly, Iohana is the forename as well as the last name.
Melo, Garcia, Torres, Vieira, Farias, Martins, Machado, Santana, Almeida, Andrade, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Freitas, Carvalho, Teixeira, Nogueira, Ferreira, Oliveira, Rodrigues, Borges, Barros, Coelho, Castro, Cruz, Rosa, Reis, Dias, Lima, Silva, Sousa, Souza, Alves, Abreu, Fernandes, Costa, Rocha, Gomes, Lopes, Jesus, Nunes, Santos, Soares, Araujo, Amorim, Aguiar, Pinto, and Nascimento