Cognomen ارتم (Ertem 
, ارتم) , around the world, is a common last name. The cognomen ارتم is habitual in Turkey, where it is quite a common surname, Belgium, where it is a rare surname, and Germany. Measured by absolute frequency, the name is most common in Turkey, Germany, and France. Much less frequently, ارتم is the forename as well as the last name.