Ichinomiya is a Japanese historical term referring to the Shinto shrines with the highest rank in a province. Shrines of lower rank were designated ninomiya , sannomiya , shinomiya , and so forth.

Owari Province was a province of Japan in the area that today forms the western half of Aichi Prefecture, including the modern city of Nagoya. The province was created in 646. Owari bordered on Mikawa, Mino, and Ise Provinces. Owari and Mino provinces were separated by the Sakai River, which means "border river." The province's abbreviated name was Bishū (尾州).