Cognomen Івар (Ivar 
, Ivaras 
, Івар 
) , globally, is quite a rare last name. The cognomen Івар is habitual in Northern Europe, particularly Norway, where it is quite a rare surname, Sweden, where it is a rare surname, and Finland. In absolute terms, the name is most common in India, Norway, and Mexico. More prevalently, Івар is the forename as well as the last name.