Cognomen Giong (Giong 
) , around the world, is a rare surname. The last name Giong is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, Singapore, and Vietnam, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Malaysia, Vietnam, and China. Very seldom, Giong is the forename as well as the last name.