Across the world, Euclidia (Euclidia 
) is a rare female given name. The forename Euclidia is habitual in Latin America and the Caribbean, particularly Brazil, where it is a rare feminine name.
| VARIANT | COUNTRY |
|---|---|
| Euclidia | South Africa, Philippines, Chile, Brazil, Venezuela |
Luz, Marques, Machado, Almeida, Andrade, Cardoso, Camargo, Barbosa, Pereira, Ribeiro, Freitas, Fonseca, Queiroz, Carvalho, Carneiro, Teixeira, Nogueira, Ferreira, Oliveira, Conceicao, Rodrigues, Goncalves, Martins, Garcia, Bastos, Castro, Melo, Cruz, Rosa, Reis, Dias, Lima, Moura, Silva, Sousa, Souza, Fernandes, Alves, Braga, Gomes, Leite, Jesus, Viana, Morais, Moraes, Santos, Soares, Araujo, Costa, and Nascimento