Last name Хилис (Hillis 
, Хилис 
) , in all the world, is quite a common family name. The family name Хилис is characteristic of Ireland, where it is quite a rare surname, Canada, and the United States. Measured by absolute frequency, it is commonest in the United States, Canada, and the United Kingdom. Very seldom, Хилис is the forename as well as the last name.