Daishō-in or Daisyō-in (大聖院) is a historic Japanese temple on Mt.Misen, the holy mountain on the island of Itsukushima, off the coast of Hatsukaichi, Hiroshima, Japan. It is the 14th temple in the Chūgoku 33 Kannon Pilgrimage and famous for the maple trees and their autumn colors. It is also called "Suishō-ji" (水精寺). Including Mt.Misen, Daishō-in is within the World Heritage Area of Itsukushima Shrine.
In this temple there is a flame which is said to have been burning since its foundation, for more than 1200 years.
Daishō-in was founded by the monk Kūkai, also known posthumously as Kōbō-Daishi (弘法大師), in the year 806, the 1st year of the Daidō era.
Kūkai was one of the most famous monks in Japan and the founder of Shingon Buddhism.
Made head temple of one of denomination of Shingon Buddhism and the oldest temple on Itsukushima.
By an Imperial order of Emperor Toba, it was the place to pray for the peace and security of the nation.
Emperor Meiji stayed there on July 31, 1885 for his visit to Itsukushima Shrine.