Nishidai-jinja, Shinto shrine in Japan

Nishidai-jinja is a Shinto shrine in Nishidai-chō, Kawachinagano, entered from the west about 800 m from Kawachinagano Station. Its grounds hold the worship hall and the shrine office, and the registered Tangible Cultural Property Kawachinagano City Budōkan stands nearby. The shrine was formerly a village shrine (sonsha).

The founding year is unknown, but the shrine was already venerated by commanders of the Southern Court during the Nanboku-chō period. In the Edo period it was called Nishidai Daimyōjin; in the Meiji era it was renamed Nishidai-jinja and ranked as a village shrine. In the late Meiji era nearby shrines were merged into it, forming its present set of deities. The former Nishidai Domain jinya stood next door but no longer exists.

The shrine's official reading is Nishindai-jinja, though locals commonly say Nishidai-jinja; the name comes from the Nishidai district where it stands. Each October the Nishidai Kagura, a ten-piece dance tradition of the Ise kagura lineage, is performed. It is said to have begun in 1732, when Honda Tadamune, lord of Nishidai, was transferred to the Ise-Kobe domain and offered the dances in gratitude.

The shrine stands at 16-5 Nishidai-cho, about 800 metres west of Kintetsu Kawachinagano Station on the Minami-Osaka Line, roughly a 10-minute walk. The grounds sit next to the Kawachinagano City Budokan, a registered tangible cultural property, which helps confirm the location.

The shrine's formal name is read Nishindai-jinja, while locals commonly call it Nishidai-jinja. The grounds once adjoined the former Kawachi-Nishidai domain's jin'ya, a residence that no longer stands; the registered tangible cultural property Kawachinagano City Budokan is nearby.