Cognomen Radzivon (Радзивон 
, Radzivon 
, Радзівон ) , worldwide, is a rare family name. The family name Radzivon is habitual in Ukraine, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, it most frequently occurs in Ukraine, Russia, and Italy. Much less frequently, Radzivon is the forename as well as the last name.