Surname Холлар (Hollar 
, Холлар 
) , across the world, is quite a rare cognomen. The family name Холлар is characteristic of the United States, where it is quite a rare surname, Hungary, where it is a rare surname, and Israel. Measured by absolute frequency, it is commonest in the United States, India, and Canada. Very seldom, Холлар is the forename as well as the last name.