Family name Kaysa (Kaysa 
, Кайса 
) , all over the world, is a rare cognomen. The surname Kaysa is habitual in Indonesia, where it is a rare surname, Bulgaria, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, Kazakhstan, and the United States. More prevalently, Kaysa is the forename as well as the last name.