Last name שימן (Schiemann 
, שימן 
, Schyman ) , all around the world, is quite a common surname. The family name שימן is habitual in Germany, where it is quite a rare surname, Sweden, and Latvia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Sweden. Very seldom, שימן is the forename as well as the last name.