Last name ก๋าย (Kai 
, ก๋าย) , all over the world, is a common surname. The cognomen ก๋าย is habitual in Malaysia, where it is a common surname, Macao, where it is quite a common surname, and Lebanon (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Malaysia, China, and Myanmar. Likewise, ก๋าย is the forename as well as the last name.