Ichinomiya (一宮町, Ichinomiya-chō) was a town located in Hoi District, east-central Aichi Prefecture, Japan. As of January 1, 2006, the town had an estimated population of 16,440 and a population density of 449 persons per km². Its total area was 36.61 km². The town was often called as Mikawaichinomiya to avoid confusion with the much larger city of Ichinomiya in former Owari Province.