Cognomen Gadomskii (Gadomskii 
, Гадомский 
) , throughout the world, is a very rare surname. The cognomen Gadomskii is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Gadomskii | Russia |
| Гадомский | Kazakhstan, Russia, Belarus |