Cognomen Княжеский (Княжеский 
, Knyazheskii , Knyazhesky 
) , all over the world, is a very rare surname. The surname Княжеский is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Княжеский, Knyazheskii | Russia |
| Knyazhesky | United States |