Cognomen Šeško (Šeško 
, Шешко 
) , in all the world, is quite a rare last name. The surname Šeško is habitual in Belarus, where it is quite a common surname, Slovenia, where it is quite a rare surname, and Ukraine, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Eastern Europe, particularly Belarus, Russia, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Šeško | Slovenia, Croatia |
| Шешко | Kazakhstan, Ukraine, Kyrgyzstan, Belarus, Russia |
|
jože šeško SI (b. 1908) |
|
|
benjamin šeško Slovene association football player, SI |
|
| darinka šeško SI |
|
|
| leander šeško SI |
|
|
| dragica šeško SI |
|