Family name Slanskii (Slanskii 
, Сланский 
) , around the world, is a rare last name. The surname Slanskii is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Slanskii | Russia |
| Сланский | Kazakhstan, Russia, Belarus |