All over the world, タチアナ (Тетяна 
, Tatiana 
, Tatjana 
, and others...) is a prevalent feminine first name. The first name タチアナ is characteristic of Ukraine, where it is a prevalent female name, Moldova, where it is a common principally female, but very seldom male name, and Georgia, where it is a common female name (explore the name in all countries). In absolute terms, it is commonest in Ukraine, Brazil, and Colombia. Much less frequently, タチアナ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Тетяна | Poland, Israel, Kyrgyzstan, Russia, Ukraine |
| Tatiana | Brazil, Moldova, Serbia, Colombia, United States |
| Tatjana | Brazil, Serbia, Colombia, United States, Germany |
| Tatyana | Brazil, Moldova, Colombia, United States, Germany |
| Tetyana | Brazil, Argentina, United States, Germany, Italy |
| Tetiana | Brazil, Colombia, United States, Germany, Italy |
| タチアナ | Japan |
Tacciana, Tachiana, Taciana, Tania, Tanja, Tanya, Tanía, Tat'Jana, Tathiana, Tatjána, Tatsiana, Tatsjana, Tatyjana, Tayanna, Taťjana, Taťána, Tetjana, Teťana, Tia, Tânia, Tétiana, Τάνια, Τατιάνα, Танечка, Танька, Танюха, Танюша, Танюшечка, Таня, Татьяна, Татьяна Татьяна, Татяна, Татјана, Таццяна, Тацяна, Тања, Тиа, טטיאנה, טניה, تاتيانا, تانيا, تانیا, তানিয়া, タタナ, タニヤ, 塔尼亚, 塔尼娅, 汤贾, and 蒂亚
タチアナ is also a name for the fictitious and mythical characters: Tatiana Romanova , the fictional spy in the James Bond story "From Russia with Love"; Ana Kravinoff , the fictional character in Marvel Comics; Tatyana Larina , the one of the main characters of Eugene Onegin; Tanya Grotter , the character, Tanya Grotter and Tatyana , the operatic character in the opera Eugene Onegin by Pyotr Ilyich Tchaikovsky; Larina's daughter, among other works.