Last name Illic (Илић 
, Illic 
) , in the world, is quite a rare cognomen. The cognomen Illic is habitual in Serbia, where it is quite a common surname, Australia, where it is a very rare surname, and the United Kingdom. Not in comparison with a country's population, it is commonest in Serbia, Brazil, and the United Kingdom. Very seldom, Illic is the forename as well as the last name.