Last name Tzeni (Tzeni 
, ジェニー 
, Дженни 
) , in the world, is a rare cognomen. The surname Tzeni is habitual in Greece, where it is quite a rare surname, Kyrgyzstan, where it is a very rare surname, and Japan. More frequently, Tzeni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tzeni | Italy, Greece, United States, United Kingdom, Germany |
| ジェニー | Japan |
| Дженни | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Τζένη | Greece |