Cognomen 希松 (希松 
, Hissong 
, Hyssong ) , around the world, is quite a rare surname. The cognomen 希松 is characteristic of the United States, where it is a rare surname, China, where it is a very rare surname, and Canada. Not in comparison with a country's population, the name is most common in the United States, China, and Germany. Also, 希松 is the forename as well as the last name.