Cognomen سيرجي (Sergey 
, Sergei , Sergej 
, along with others...) , around the world, is a common last name. The surname سيرجي is habitual in Moldova, where it is a common surname, Israel, where it is quite a common surname, and Georgia (explore the name in all countries). In absolute terms, it is the most numerous in Spain, Israel, and Italy. More prevalently, سيرجي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sergei, Sergey | Russia, Moldova, Uzbekistan, Germany, Spain |
| Sergej, Serghei | Russia, Moldova, Belarus, Germany, Spain |
| Sergi | Russia, Israel, United States, Germany, Spain |
| سيرجي | Yemen, Palestinian Territory |
Segei, Serge, Sergejs, Sergejus, Serghey, Sergi-Girona, Sergio, Sergios, Sergiu, Sergius, Sergiusz, Serguei, Sergueï, Serguéi, Serhi, Serhii, Serhij, Serhiy, Serhiï, Serxio, Siarhei, Siarhej, Siarhiej, Siergiej, Srđan, Syarhey, Szergej, Sérgio, Σέργιος, Сергей, Сергий, Сергиос, Сергиус, Сергиуш, Сергій, Серджо, Серджу, Серж, Сержи, Сержио, Сержиу, Серхи, Серхий, Серхио, Серый, Серёга, Срджан, Сяргей, סרג'י, סרגיוס, סרגיי, سرجيوس, سيرج, سيرجيو, سيرغي, スルタン, セルゲイ, セルジョ, セルヒオ, and 塞登