The Ichinomiya Sengen Jinja (一宮浅間神社) is a Shintō shrine in the Takata neighborhood of the town of Ichikawamisato, Nishiyatsushiro District in Yamanashi Prefecture, Japan.

While located near the site of the ancient provincial temple of Kai Province, the Kai Kokubun-ji and the provincial capital during the Nara and Heian periods and while mentioned in the Engishiki records of 926 AD as a myōjin taisha (名神大社), there is controversy as to whether the Heian period records are referring to this shrine, or to the Ichinomiya Asama Jinja in the city of Fuefuki.

In favor of this shine's claims are its location (in an area which was named "Ichinomiya") and the fact that the Fuefuki area did not really develop as the center of the province until under the Takeda clan in the Muromachi period.

The shrine in Ichikawamisato received stipends from the Takeda clan, and under Tokugawa Ieyasu received territory, tax relief for the use of bamboo and trees on shrine territory.

[2] The shrine is a 12-minute walk from Ichikawa-Daimon Station on the JR East Minobu Line.