Family name Dzan (ซาน 
, Dzan 
, Дзан 
) , throughout the world, is a rare cognomen. The surname Dzan is habitual in Thailand, where it is a rare surname, Czechia, and Malaysia, where it is a very rare surname. Measured by absolute frequency, the name is most common in Thailand, Indonesia, and Russia. More prevalently, Dzan is the forename as well as the last name.