Cognomen 金书 (金书 
, Jinshu 
) , in all the world, is a rare family name. The family name 金书 is habitual in Taiwan, where it is a rare surname, Singapore, and China, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in China, Taiwan, and Spain. More prevalently, 金书 is the forename as well as the last name.