Surname Хой (Hoy 
, Khoy 
, Хой 
) , worldwide, is a common cognomen. The cognomen Хой is characteristic of Belize, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Equatorial Guinea. In absolute terms, the name is most common in the United States, the United Kingdom, and Malaysia. Much less frequently, Хой is the forename as well as the last name.