Vietnamese names put the family name first followed by the middle and given names. Take Pham Van Duc, for example, Pham is the family name or what we call the last name. Van is the individual's middle name, and Duc is the given or first name.

Boys typically get an abstract name representing a personal quality such as Duc (virtue) or Khiem (modesty).

Girls are often given names that embody beauty, naming them after birds, flowers, rivers or precious objects. Popular female names include Phuong (phoenix), Cuc (chrysanthemum), and Hoa (flower).

The baby boy name Duc is pronounced as DahK. Duc is primarily used in the Vietnamese language, and it is of English and Vietnamese origin. From Vietnamese roots, its meaning is virtuous, moral.
In addition, Duc is a form of the English and Irish name Duke.
The name Duoc and the Vietnamese name Duy are forms of Duc.