Cognomen Хавас (Havas 
, Khavas 
, Хавас 
) , throughout the world, is a common last name. The cognomen Хавас is habitual in Hungary, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Finland. Not in comparison with a country's population, it is the most numerous in India, Hungary, and the United States. Very seldom, Хавас is the forename as well as the last name.