Surname Smut (Smut 
) , all around the world, is a very rare last name. The last name Smut is habitual in Argentina, where it is a very rare surname, Malaysia, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Argentina, Malaysia, and the United States. More frequently, Smut is the forename as well as the last name.