Cognomen Chumar (Chumar 
) , in the entire world, is a very rare last name. The surname Chumar is characteristic of Malaysia, where it is a very rare surname, Brazil, and Argentina, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Brazil, India, and Malaysia. Likewise, Chumar is the forename as well as the last name.