Family name Smus (Smus 
, Смус 
, Смусь 
) , around the world, is a rare cognomen. The last name Smus is habitual in Eastern Europe, particularly Ukraine, where it is a rare surname, Poland, and Belarus. Not in comparison with a country's population, it is commonest in Eastern Europe, particularly Ukraine, Poland, and Russia. Also, Smus is the forename as well as the last name.