Last name Dianzuo (Ван 
, Dianzuo) , in the world, is a very rare cognomen. The cognomen Dianzuo is habitual in Armenia, where it is quite a rare surname, Kyrgyzstan, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Armenia, Russia, and Kyrgyzstan. Also, Dianzuo is the forename as well as the last name.