Rinshō-in, Buddhist temple in Kasugai, Japan

Rinshō-in is a temple of the Kōyasan Shingon school in the Tatega-chō district of Kasugai, Aichi Prefecture. It was founded in 1552 by the monk Emyō, who had trained on Mount Ōmine, and was first named Ashara-san Rinshō-in. Its grounds hold a designated Important Cultural Property: a silk portrait of Shōbō, designated in June 1992.

Founded in 1552 by the monk Emyō, Rinshō-in was originally named Ajara-san Rinshō-in. Emyō, formerly of Uchiyama Eikyū-ji and trained on Mount Ōmine, was ordered by Oda Nobunaga to pray for victory at the Battle of Okehazama; after the victory, Nobunaga granted the temple the name Daijō-ji. In 1663, the temple enshrined Akiba Gongen, a deity gifted by the lord Tokugawa Yoshinao. It belonged to the Shugendō Tōzan-ha until 1954, when it joined the Koyasan Shingon school.

Each February, the Akiba deity is carried through the neighbourhoods of Takagi and Ote elementary school districts in Kasugai and To elementary school district in Komaki, with priests reciting sutras and offering prayers daily. In April, residents set out rice and coins for Kobo Daishi, and neighbourhood association members hand out mochi and sweets.

Rinshō-in stands in the Taraga district of Kasugai, reached by Meitetsu bus from Kasugai or Kachigawa stations; get off at Nishimachiya, Machiya or Minamimachiya, or take the Komaki loop bus to Uetaraga. The temple is near Ryūfuku-ji, Shintoku-ji and the Taraga fortress site.

The temple's name changed after the Battle of Okehazama: Oda Nobunaga, grateful for a victory prayer, granted it the name Daitō-ji. It was founded in 1552 by the monk Eimyō, who had trained on Mount Ōmine and previously belonged to the Uchiyama Eikyū-ji.