Last name Карби (Carby 
, Карби 
) , across the world, is quite a rare family name. The cognomen Карби is characteristic of Jamaica, where it is quite a common surname, Bahamas, where it is quite a rare surname, and the United Kingdom, where it is a rare surname. In absolute terms, it is commonest in Jamaica, the United States, and the United Kingdom. Very seldom, Карби is the forename as well as the last name.