Cognomen Aliby (Алибий 
, Aliby 
) , all around the world, is a rare family name. The last name Aliby is characteristic of Libya, where it is quite a rare surname, Egypt, where it is a rare surname, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it is commonest in Libya, Egypt, and Indonesia. Very seldom, Aliby is the forename as well as the last name.