Surname Cherniakhovskii (Cherniakhovskii 
, Черняховский 
) , all around the world, is a rare cognomen. The surname Cherniakhovskii is habitual in Belarus, where it is a rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Cherniakhovskii | Russia |
| Черняховский | Kazakhstan, Russia, Ukraine, Belarus |