Worldwide, 代 (Dai 
, 代 , Dài ) is a common gender-neutral first name. The forename 代 is characteristic of Mongolia, where it is quite a common gender-neutral name, Macao, and Vietnam, where it is quite a rare primarily male, but scarcely female name. Measured by absolute frequency, it most frequently occurs in India, Vietnam, and China. Much more frequently, 代 is the last name as well as the forename.
代 is also a name for the fictitious and mythical characters: Dai , the fictional character from Dragon Quest: Dai no Daibōken, Dragon Quest: The Adventure of Dai and Dai Donovan , the fictional character from Pride.