Family name دوي (Dewi 
, Duy 
, Doi ) , in the entire world, is a widespread cognomen. The surname دوي is characteristic of Indonesia, where it is a common surname, Vietnam, where it is quite a common surname, and Macao (explore the name in all countries). In absolute terms, this name is the most popular in Indonesia, Vietnam, and India. Likewise, دوي is the forename as well as the last name.