Cognomen Dong-Hui (동희 
, Dong-Hui 
) , throughout the world, is an extremely rare family name. The cognomen Dong-Hui is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Dong-Hui is the forename as well as the last name. Parts of the name also exists independently as a last name Dong, and a first name Hui.