Last name Kondratskii (Kondratskii 
, Кондратцкии , Кондрацкий 
) , in all the world, is a rare family name. The family name Kondratskii is habitual in Belarus, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Kondratskii | Canada, Russia |
| Кондратцкии | Russia |
| Кондрацкий | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Кондратский | Kazakhstan, Russia, Ukraine |
Кондратскій, Кондратський, Кондратьський, Кондрацкій, Кондрацький, and Кондрацькій