Family name 书欣 (Shuxin 
, 书欣 ) , globally, is a rare surname. The cognomen 书欣 is characteristic of Singapore, where it is a rare surname, China, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in China, Singapore, and the United States. More frequently, 书欣 is the forename as well as the last name.