Around the globe, Nathacia (Nathacia 
) is a rare girly forename. The forename Nathacia is habitual in South Africa, where it is a very rare feminine name, and Brazil. Much less frequently, Nathacia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nathacia | South Africa, Philippines, Colombia, United States, Brazil |
Melo, Morais, Motoki, Medina, Santos, Amaral, Thomaz, Martins, Pereira, Ribeiro, Olivier, Chimello, Brochini, Ferreira, Indayara, Williams, Scheurich, Kretzmann, Rodrigues, Goncalves, Fernandes, Casagranda, Mabasa, Macedo, Obzunar, Faria, Aviz, Cruz, Braz, Ruel, Deus, Lima, Silva, Sousa, Souza, Alves, Brown-Burns, Barra, Burns, Porto, Pinto, Pires, Ribas, Gamba, Gomes, Tlale, Neves, Hayes, Brown, and Vasconcelos