Cognomen קואן (Kuan 
, Coan 
, קואן 
) , all over the world, is a widespread family name. The surname קואן is characteristic of Macao, where it is a common surname, Malaysia, and Brunei, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Malaysia, the United States, and China. Very seldom, קואן is the forename as well as the last name.