Family name غوان (Guan 
, Gwan 
, Gouin 
) , all over the world, is a widespread last name. The last name غوان is characteristic of Malaysia, where it is a common surname, Bermuda, and Cayman Islands, where it is quite a common surname (explore the name in all countries). In absolute terms, it is the most numerous in China, Malaysia, and the United States. Very seldom, غوان is the forename as well as the last name.