Cognomen Modun (Modun 
, Модун 
) , globally, is a rare family name. The last name Modun is habitual in Croatia, where it is a rare surname, Malaysia, where it is a very rare surname, and Australia. Not in comparison with a country's population, it most frequently occurs in India, Croatia, and the United States. Also, Modun is the forename as well as the last name.