Cognomen Khwang (ควาง 
, ขวาง , Khwang 
) , around the globe, is a rare family name. The last name Khwang is characteristic of South-eastern Asia, particularly Singapore, where it is a rare surname, Malaysia, and Thailand, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Malaysia, China, and Singapore. Very seldom, Khwang is the forename as well as the last name.