Cognomen 希之 (Xizhi 
, 希之 ) , all over the world, is a rare surname. The last name 希之 is characteristic of Indonesia, where it is a very rare surname, China, and Chile, where it is an extremely rare surname. In absolute terms, it is the most numerous in China, Indonesia, and the United States. More frequently, 希之 is the forename as well as the last name.