Around the world, Isaina (Isaina 
) is a rare principally female, but very infrequently boy's given name. The forename Isaina is characteristic of the Democratic Republic of the Congo, where it is a rare female name, Nigeria, where it is a very rare gender-neutral name, and Brazil. Very seldom, Isaina is the last name as well as the forename.
Dias, Salazar, Andrade, Cercado, Batista, Becerra, Bezerra, Sanchez, Monteiro, Canteros, Diogenes, Villagra, Oliveira, Bondzandzou, Rodrigues, Carvalho, Goncalves, Vieira, Pontes, Lima, Sales, Silva, Sousa, Alves, Costa, Najera, Braga, Jesus, Zocal, Moreta, Mendes, Santos, Chaves, Pinto, and Nascimento