Cognomen Донг (Dong 
, Đồng 
, Донг 
) , worldwide, is a prevalent last name. The cognomen Донг is characteristic of British Virgin Islands, where it is a common surname, Cayman Islands, and China (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in China, Vietnam, and the United States. Much less frequently, Донг is the forename as well as the last name.