Family name สมอุ่น (Warm 
, สมอุ่น) , worldwide, is quite a rare last name. The last name สมอุ่น is characteristic of Denmark, where it is quite a rare surname, Germany, where it is a rare surname, and Myanmar. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Myanmar. Likewise, สมอุ่น is the forename as well as the last name.