Globally, Thayany (Thayany 
) is a rare girly first name. The forename Thayany is characteristic of Latin America and the Caribbean, particularly Brazil, where it is a rare feminine name.
| VARIANT | COUNTRY |
|---|---|
| Thayany | Brazil, United States, Spain, France |
Melo, Cintra, Barros, Martins, Marques, Moreira, Menezes, Almeida, Azevedo, Cardoso, Cardozo, Castedo, Barbosa, Pereira, Freitas, Siqueira, Pinheiro, Ferreira, Oliveira, Conceicao, Rodrigues, Goncalves, Correa, Campos, Araujo, Soares, Cruz, Brum, Reis, Dias, Lima, Merlo, Muniz, Silva, Sousa, Souza, Fernandes, Alves, Curty, Cunha, Brito, Paiva, Ramos, Rocha, Gomes, Lopes, Mendes, Santos, Costa, and Nascimento