Surname Kosh-Kosh (Kosh-Kosh 
) , in the entire world, is an extremely rare last name. The cognomen Kosh-Kosh is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname. Parts of the name also exists independently as a last name Kosh, and a last name Kosh.
| VARIANT | COUNTRY |
|---|---|
| Kosh-Kosh | Russia |