Cognomen クワン (Kwan 
, Coin 
, クワン 
) , all over the world, is a widespread family name. The cognomen クワン is characteristic of Hong Kong, where it is a common surname, Bermuda, and Cayman Islands (explore the name in all countries). In absolute terms, it is commonest in Hong Kong, Malaysia, and China. Much less frequently, クワン is the forename as well as the last name.