Cognomen เชม (Chem 
, เชม 
, Shemz) , in the entire world, is quite a common surname. The family name เชม is characteristic of Algeria, where it is quite a rare surname, Tunisia, and Malaysia. Not in comparison with a country's population, it is the most numerous in Algeria, Indonesia, and Tunisia. Likewise, เชม is the forename as well as the last name.