Cognomen Xui (Хуи 
, Xui 
) , in the world, is a rare last name. The cognomen Xui is habitual in Malaysia, where it is quite a rare surname, Armenia, where it is a rare surname, and Australia. Not in comparison with a country's population, it is the most numerous in South-eastern Asia, particularly Malaysia, Indonesia, and Myanmar. Likewise, Xui is the forename as well as the last name.