Last name Хои (Hoi 
, Khoi 
, Xoi 
) , across the world, is a common cognomen. The family name Хои is characteristic of Macao, where it is a widespread surname, Malaysia, where it is quite a common surname, and Hong Kong (explore the name in all countries). Not in comparison with a country's population, the name is most common in Malaysia, Japan, and Macao. Also, Хои is the forename as well as the last name.