Cognomen Khuy (Хуи 
, Khuy 
, Хуы ) , around the globe, is a rare last name. The family name Khuy is characteristic of Armenia, where it is a rare surname, Malaysia, and Vietnam, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Vietnam, Russia, and Malaysia. More frequently, Khuy is the forename as well as the last name.