Ichinomiya is a city located in the Aichi Prefecture of Japan. While it serves as a specific geographic location, the term "Ichinomiya" also functions as a historical Japanese designation used to identify Shinto shrines.
In this historical context, Ichinomiya refers specifically to the shrine holding the highest rank within a given province. Other shrines of lower hierarchical status were designated with different prefixes, such as ninomiya, sannomiya, shinomiya, and so forth.