Family name Kadys (Kadys 
, Кадис 
) , in all the world, is a rare surname. The family name Kadys is habitual in Lithuania, where it is quite a rare surname, Poland, where it is a rare surname, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Poland, Lithuania, and Russia. Also, Kadys is the forename as well as the last name.