Last name ก่าย (Kai 
, ก่าย) , in all the world, is a common family name. The last name ก่าย 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). Measured by absolute frequency, it most frequently occurs in Malaysia, China, and Myanmar. Likewise, ก่าย is the forename as well as the last name.