Family name 克氏 (Kirschner 
, 克氏) , all over the world, is a common surname. The cognomen 克氏 is characteristic of Aland Islands, where it is quite a common surname, Austria, and Germany. Measured by absolute frequency, it is commonest in Germany, the United States, and Austria. Very seldom, 克氏 is the forename as well as the last name.