Cognomen ซุ้ย (Sui 
, ซุ้ย) , around the globe, is a widespread family name. The surname ซุ้ย is habitual in Mongolia, where it is a widespread surname, Malaysia, where it is quite a common surname, and Cayman Islands (explore the name in all countries). In absolute terms, the name is most common in China, Mongolia, and Malaysia. Very seldom, ซุ้ย is the forename as well as the last name.