Last name ขวาง (ขวาง 
, Khwang 
) , all over the world, is a rare family name. The cognomen ขวาง is characteristic of South-eastern Asia, particularly Singapore, where it is a rare surname, Malaysia, and Thailand, where it is an extremely rare surname. In absolute terms, this name is the most popular in Malaysia, China, and Singapore. Much less frequently, ขวาง is the forename as well as the last name.