Hisaichi Ishii (いしい ひさいち or 石井 壽一, Ishii Hisaichi, born September 2, 1951 in Tamano, Okayama Prefecture, Japan) is a Japanese manga artist. He is best known outside Japan for his manga series Nono-chan, which was made into the Studio Ghibli anime film My Neighbors the Yamadas. Topics covered by Ishii's manga include baseball (in his debut work), politics, economics, current events and topics, philosophy, and so on. He is known for his extreme caricatures of well-known celebrities and well known people, including Kōichi Tabuchi (a pro baseball catcher in Japan), Kim Jong Il, and Tsuneo Watanabe (executive director of the group, owner of the Yomiuri Shimbun).