Cognomen 山梨 (Yamanashi 
, 山梨 , Yamanasi 
) , throughout the world, is a rare family name. The family name 山梨 is characteristic of Japan, where it is a very rare surname, Chile, and Germany. Not in comparison with a country's population, this name is the most popular in Japan, the United States, and Germany. Also, 山梨 is the forename as well as the last name.