Surname Murun (Murun 
, Мурун 
, ムルン) , around the globe, is a rare cognomen. The cognomen Murun is habitual in Mongolia, where it is quite a rare surname, Malaysia, where it is a very rare surname, and Philippines. In absolute terms, the name is most common in Mongolia, India, and Malaysia. More prevalently, Murun is the forename as well as the last name.