Cognomen เว้ย (Woei 
, เว้ย) , in the entire world, is quite a common last name. The cognomen เว้ย is habitual in Malaysia, where it is quite a common surname, Singapore, where it is a rare surname, and Netherlands. In absolute terms, it is commonest in Malaysia, China, and Indonesia. Very seldom, เว้ย is the forename as well as the last name.