Taigaku-ji, Buddhist temple in Kasugai, Japan

Taigaku-ji is a Rinzai-shu Myoshin-ji sect temple on Mount Hōun in Kamijō-chō, Kasugai, Aichi Prefecture. Its main hall was rebuilt between 1986 and 1988, and its mountain gate is the red gate (Akamon) relocated from the Sannomaru Shimizu entrance of Nagoya Castle. The temple enshrines a statue of Shō Kannon and holds a city-designated portrait of the monk Ninzei Sōjo.

Founded in 1486, when the local lord Hayashi Shigeo, 11th head of the Hayashi family and castellan of Kamijō Castle, invited the monk Ninzai Sōjo from Mino Province to open the temple. Its 15th abbot, Yōzan Sōshuku, received the red gate of Nagoya Castle's Sannomaru Shimizu entrance as the temple gate. The current main hall was begun in 1986 and completed in 1988.

The main image is Sho Kannon, the bodhisattva of compassion, not Yakushi Nyorai; the temple belongs to the Rinzai-shu Myoshin-ji school. It keeps a silk portrait of the founder Nisai Sōjo, a Kasugai city-designated cultural property. The temple gate is the red gate (Akamon) moved here from the Sannomaru Shimizu entrance of Nagoya Castle.

Taigaku-ji is about 18 minutes on foot south from the south exit of JR Kasugai Station, or about 20 minutes north from Kawamura Station on the Yutorito Line; the Haatofuru Liner stops at Taigakuji-higashi, one minute west. The main hall dates from 1988, and the red gate moved from Nagoya Castle serves as the temple gate.

The temple's mountain gate is the red gate (Akamon) of the Sannomaru Shimizu entrance of Nagoya Castle, received by the 15th abbot Yozan Soshuku and moved here. The temple also keeps a silk-colored portrait of the founder Ninsai Shunjo, a Kasugai City designated cultural property.