Orita Heinai (January 23, 1847 – May 7, 1905) was a Japanese politician who served as governor of Hiroshima Prefecture from April 1896 to April 1897. He was also governor of Yamagata Prefecture (1882–1883), Fukushima Prefecture (1883–1888), Tochigi Prefecture (1889–1894) and Shiga Prefecture (1897–1899).