Last name Yamanasi (山梨 , Yamanasi ) , all around the world, is an extremely rare family name. Much more frequently, Yamanasi is the forename as well as the last name.
Yamanashi, and ヤマナシ
, Yamanasi 
) , all around the world, is an extremely rare family name. Much more frequently, Yamanasi is the forename as well as the last name.