Family name 卡伊 (Kai 
, Kaj , 卡伊 ) , all around the world, is a common surname. The last name 卡伊 is characteristic of Malaysia, where it is a common surname, Lebanon, where it is quite a common surname, and Macao (explore the name in all countries). In absolute terms, the name is most common in Malaysia, China, and Myanmar. Likewise, 卡伊 is the forename as well as the last name.