Last name Nadja (Nadja 
, ناديا 
, Надя 
, and others...) , in the entire world, is quite a common family name. The cognomen Nadja is characteristic of Eastern Europe, particularly Moldova, where it is quite a common surname, Bulgaria, where it is quite a rare surname, and Belarus. Measured by absolute frequency, it is commonest in Russia, Indonesia, and Bulgaria. More frequently, Nadja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nadja | Germany, Sweden, Russia, Serbia, Brazil |
| ناديا | Iran, Palestinian Territory, Syria, Jordan, Iraq |
| Надя | Germany, Russia, Moldova, Bulgaria, United States |
| נדיה | Israel |
| ナジャ | Japan |
Nadejda, Nadeschda, Nadeshda, Nadezhda, Nadezjda, Nadežda, Nadia, Nadieżda, Nadiia, Nadija, Nadiya, Nadyezhda, Naděžda, Naďa, Nàdiya, Nádia, Nádja, Spes, Надежда, Надечка, Наджа, Надзея, Надзя, Надзія, Надиа, Надия, Надйа, Надька, Надья, Надюша, Надєжда, Надія, Надја, Нађа, נדז'דה, نادية, ناديجدا, نادیا, نادیہ, ناضجة, নাদিয়া, ナディア, and 娜嘉
| slavka radoševič - nadja (b. 1918) |
|
Melo, Farias, Martins, Menezes, Müller, Santana, Almeida, Andrade, Barbosa, Batista, Bezerra, Pereira, Ribeiro, Freitas, Carvalho, Ferreira, Oliveira, Conceicao, Rodrigues, Fernandes, Cavalcante, Nascimento, Vieira, Barros, Campos, Araujo, Cruz, Reis, Dias, Lima, Maria, Moura, Silva, Sousa, Souza, Alves, Albuquerque, Costa, Ramos, Rocha, Gomes, Leite, Lopes, Jesus, Nunes, Morais, Santos, Soares, Brito, and Vasconcelos