Family name Chudny (Чудный 
, Chudny 
) , in the world, is a rare last name. The last name Chudny is habitual in Belarus, where it is a rare surname, Russia, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Russia, Belarus, and Ukraine. Very seldom, Chudny is the forename as well as the last name.