Hi Province (火国 or 肥国 Hi no kuni) was an ancient province of Japan, in the area of Hizen and Higo provinces. The ambit of this ancient entity is within Nagasaki, Saga and Kumamoto prefectures. It was sometimes called Hishū (肥州).
- ^ Satow, Ernest. (1874). "The Geography of Japan," Transactions of the Asiatic Society of Japan, Vol. 1-2, p. 34., p. 34, at Google Books
- ^ ; Nussbaum, Louis-Frédéric. (2005). "Hizen" in Japan Encyclopedia, p. 338, p. 338, at Google Books; "Higo" in Japan Encyclopedia, p. 310, p. 310, at Google Books.