Cognomen Ileia (Ileia 
) , around the world, is an extremely rare surname. Much more frequently, Ileia is the forename as well as the last name.
Cruz, Harris, Vieira, Fauver, Martins, Machado, Moreira, Almeida, Barroso, Bezerra, Pereira, Pingree, Ribeiro, Derouin, Grapski, Freitas, Fonseca, Masumoto, Carvalho, Brashear, Ferreira, Oliveira, Ehlert, Novais, Thomas, Burgos, Beck, Reis, Lima, Lund, Matos, Silva, Sousa, Souza, Smith, Rocha, Rodrigues, Gomes, Eason, Wells, Murray, Santos, Soares, Araujo, Adonis, Chagas, Bastos, Belton, Lopes, and Nagelkirk