Cognomen Кубои (Kuboi 
, Кубои) , in the entire world, is a very rare family name. The surname Кубои is characteristic of Indonesia, where it is a very rare surname, the United Kingdom, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Indonesia, the United States, and the United Kingdom. Very seldom, Кубои is the forename as well as the last name.