Shibito Azuma

led Iwagakure's forces against Konoha's during the Third Great Shinobi World War, as seen during Kakashi Gaiden. He almost broke through Konoha's defenses when Minato Namikaze showed up and defeated them.

Trivia

 * His family name,, means "east".
 * He is so far the first and only Iwagakure ninja to have a known surname.