貝洲加藤神社, Shinto shrine in Japan

Kaijo Kato Shrine is a Shinto shrine in the Kaizu district of Kagami-machi, Yatsushiro, Kumamoto Prefecture. It enshrines Kato Kiyomasa and was founded in 1822 by Ryohei Kanogoki after he completed three large land reclamation projects. The shrine grounds include the main hall, subsidiary shrines Kaizu Shrine and Wago Shrine, and a stone torii gate.

The shrine was founded in 1822, when Kanogoki Ryōhei, after completing three major land-reclamation projects between 1805 and 1822, had a spirit divided from the Jōchi-byō of Honmyō-ji to honor Kato Kiyomasa. It began as a combined Shinto-Buddhist shrine and was converted to Shinto in 1870 under the separation order, becoming a village shrine.

The inner shrines honor sea deities and are visited by locals seeking protection for fishing and harvests, reflecting farming traditions tied to the land. Kagura dance performances during festivals connect these spiritual practices to community gatherings and seasonal celebrations.

The shrine stands in Kaizu, Kagami-machi, Yatsushiro, a district where about 80 percent of the land was reclaimed from the sea. The annual grand festival is held on September 24. Within the grounds are two subsidiary shrines, Kaizu Shrine and Wago Shrine, dedicated to Ichikishimahime and Watatsumi no Okami.

The shrine honors Kato Kiyomasa, a 16th-century military leader remembered for water management and land development, as a protector of human-made landscapes rather than just a spiritual figure. This link between a warrior and agricultural protection is an uncommon combination in Japanese shrine traditions.