Surname Уллар (Ullar 
, Üllar , Kerde 
) , in the entire world, is a rare family name. The surname Уллар is habitual in Estonia, where it is quite a common surname, Lesotho, where it is quite a rare surname, and Albania, where it is a rare surname. In absolute terms, it is commonest in Estonia, Malaysia, and Lesotho. Much less frequently, Уллар is the forename as well as the last name.