Cognomen ช้อย (Choi 
, Choai 
, ช้อย) , throughout the world, is a widespread last name. The last name ช้อย is habitual in Macao, where it is a prevalent surname, Hong Kong, where it is a widespread surname, and Cayman Islands, where it is a common surname (explore the name in all countries). In absolute terms, it is the most numerous in Hong Kong, the United States, and China. Likewise, ช้อย is the forename as well as the last name.