Surname Луби (Looby 
, Луби 
) , around the world, is quite a rare family name. The surname Луби is habitual in Antigua and Barbuda, where it is quite a common surname, Ireland, where it is quite a rare surname, and Trinidad and Tobago. Measured by absolute frequency, it is commonest in the United States, Ireland, and Australia. Very seldom, Луби is the forename as well as the last name.