Surname Tathiana (Tathiana 
, تاتيانا 
, タチアナ 
) , all over the world, is a rare cognomen. The surname Tathiana is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a rare surname, Uruguay, and Honduras. In absolute terms, it is the most numerous in Japan, Mexico, and Nicaragua. More frequently, Tathiana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tathiana | El Salvador, Paraguay, Colombia, Brazil, Democratic Republic of the Congo |
| تاتيانا | Iraq, Syria, Palestinian Territory, Iran, Jordan |
| タチアナ | Japan |
Melo, Martins, Machado, Moreira, Sanchez, Almeida, Andrade, Azevedo, Cardoso, Pereira, Ribeiro, Tavares, Freitas, Monteiro, Carvalho, Gonzalez, Teixeira, Ferreira, Oliveira, Rodriguez, Rodrigues, Guimaraes, Vieira, Torres, Garcia, Duarte, Reis, Dias, Lima, Silva, Sousa, Souza, Alves, Costa, Braga, Rocha, Fernandes, Gomes, Nunes, Moraes, Santos, Soares, Araujo, Amaral, Castro, Campos, Barros, Patino, Lopes, and Nascimento