Surname Smilin (Smilin 
, ยิ้ม, Смилин 
) , around the globe, is a rare last name. The cognomen Smilin is characteristic of Myanmar, where it is a very rare surname, Colombia, and Russia. Not in comparison with a country's population, the name is most common in Indonesia, Myanmar, and Russia. Also, Smilin is the forename as well as the last name.