Hisatsu Orange Railway Co., Ltd. (肥薩おれんじ鉄道株式会社, Hisatsu Orenji Tetsudō Kabushiki-gaisha) is a third-sector railway company which operates Hisatsu Orange Railway Line in Kumamoto and Kagoshima prefectures. The line follows the former part of the JR Kyushu Kagoshima Main Line that connected Yatsushiro and Sendai in Kumamoto and Kagoshima Prefectures, known historically as Higo and Satsuma Provinces. The length of the line is 116.9 km. The company has a total of 19 diesel cars, but two of them are reserved for special events.