Onomichi University (Onomichi daigaku) is a municipal university in Japan. It is located in Hisayamada-cho, Onomichi City, Hiroshima Prefecture. The university was founded in 1946 as Onomichi Municipal Women's College (Onomichi shiritsu joshi semmon gakkō), a three-year college for ages 17-20 or above. In 1950 the school was developed into Onomichi Junior College (Onomichi tanki daigaku), a co-educational college, under Japan's new educational system.
At first the junior college had one department: the Department of Japanese Literature. In 1951 the Department of Economics was added. In 1962 it was removed to the present campus. In 1988 the Department of Business Administration and Information Science was added. In 2001 the junior college was developed into Onomichi University, a four-year university with two faculties: the Faculty of Economics, Management & Information Science and the Faculty of Artistic Culture. In 2005 the Graduate Schools were added (Master's courses only).