Family name กว่าง (Kwang 
, กว่าง) , globally, is a common cognomen. The surname กว่าง is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, and Brunei, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Malaysia, Indonesia, and China. Much less frequently, กว่าง is the forename as well as the last name.