Family name 代 (Dai 
, 代 , Dài ) , worldwide, is a prevalent cognomen. The cognomen 代 is characteristic of Cayman Islands, where it is a common surname, China, and Bermuda, where it is quite a common surname (explore the name in all countries). In absolute terms, it most frequently occurs in China, India, and Indonesia. Much less frequently, 代 is the forename as well as the last name.