Last name 科思 (Koth 
, Korth 
, 科思 
) , around the globe, is quite a common surname. The surname 科思 is characteristic of Germany, where it is quite a rare surname, Laos, and Austria. Not in comparison with a country's population, it is the most numerous in Germany, the United States, and the Democratic Republic of the Congo. Very seldom, 科思 is the forename as well as the last name.