Surname Нгой (Ngoie 
, Нгой 
) , throughout the world, is quite a common family name. The cognomen Нгой is habitual in the Democratic Republic of the Congo, where it is quite a rare surname, the Republic of the Congo, and Belgium, where it is a rare surname. In absolute terms, it most frequently occurs in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, the Republic of the Congo, and South Africa. Much less frequently, Нгой is the forename as well as the last name.