Cognomen Tat'Jana (Татьяна 
, Tat'Jana 
, Тацяна ) , across the world, is a common last name. The surname Tat'Jana is characteristic of Kyrgyzstan, where it is a common surname, Moldova, and Belarus, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is commonest in Russia, Kyrgyzstan, and Belarus. Much more frequently, Tat'Jana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Татьяна | Kazakhstan, Belarus, Kyrgyzstan, Russia, Moldova |
| Tat'Jana | Germany, Ukraine, Russia, Belarus |
| Тацяна | Russia |
Tacciana, Taciana, Tania, Tanja, Tanya, Tatiana, Tatjana, Tatjána, Tatsiana, Tatsjana, Tatyana, Tatyjana, Taťjana, Taťána, Tetiana, Tetjana, Tetyana, Teťana, Tétiana, Τατιάνα, Танечка, Танька, Танюха, Танюша, Танюшечка, Таня, Тат'Яна, Татьйана, Татьяна Татьяна, Татяна, Татјана, Таццяна, Тања, Тетяна, טטיאנה, تاتيانا, and タチアナ
Tara, Rjabova, Domorad, Lagojko, Volkova, Ivanova, Osipova, Morozova, Sokolova, Smirnova, Drozdova, Novikova, Vasil'Eva, Sidorenko, Alekseeva, Kapustina, Klimovich, Pavlovich, Rusetskaja, Tarabueva, Shepelevich, Kazachenok, Pinchuk, Lazakovich, Kozlova, Bobkova, Oreh, Breus, Rybak, Dudko, Drozd, Vskiy, Savina, Shpil', Bolbas, Poznjak, Gajshun, Guscha, Loseva, Honjak, Mal'Tseva, Miholap, Sin'Kevich, Stel'Mak, Akulich, Avdeeva, Bagaeva, Kostina, and Gerasimovich