Surname הוי (Hoy 
, הוי 
) , across the world, is a common last name. The surname הוי is habitual in Belize, where it is quite a common surname, Equatorial Guinea, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Malaysia. Very seldom, הוי is the forename as well as the last name.