Last name ヤマナシ (ヤマナシ ) , globally, is an extremely rare surname. Much more prevalently, ヤマナシ is the forename as well as the last name.
Yamanashi, Yamanasi, and 山梨
アヤカ, サトシ, マユミ, ヨウコ, ユウジ, and ノリコ
) , globally, is an extremely rare surname. Much more prevalently, ヤマナシ is the forename as well as the last name.