Ōsaki Hachimangū is a revered Shinto shrine situated in Aoba-ku, Sendai, within Miyagi Prefecture, Japan. Established between 1604 and 1607 by the feudal lord Date Masamune, it is recognized as a National Treasure of Japan. The shrine's architecture is a prime example of Azuchi–Momoyama period design, featuring the unique ishi-no-ma-zukuri style. It continues to be a vibrant center of cultural and religious activities, hosting festivals and ceremonies that reflect the rich traditions of northern Japan.