Reikōden Tenman-gū, Shinto shrine in Japan

Reikōden Tenman-gū is a Shinto shrine in the Kamigyō ward of Kyoto, dedicated to Tenman Tenjin (Sugawara no Michizane) and Tokugawa Ieyasu. Its current main hall was moved here in 1872 from a former tutelary shrine of the Konoe family. The shrine stands in a residential area along Shinmachi-dōri, about five minutes on foot from Imadegawa Station.

The shrine began in 1018, when Sugawara no Michizane's sixth-generation descendant Sugawara no Yoshisato, by imperial order, built a sanctuary in Wakae district of Kawachi Province, land once held by Michizane. It lost its lands in the Ōnin War and was moved into the Tō-ji precincts. In 1570 Tokugawa Ieyasu prayed there for peace, and in 1636 Ieyasu's image was moved from the Sentō Palace and enshrined. The shrine reached its present site in 1761, and its current hall was relocated from the Konoe family's former tutelary shrine in 1872.

The shrine's name comes from a legend that a ray of light fell from heaven with the deities Ten'ichijin and Taishakuten when Sugawara no Michizane was exiled. It honours Tenjin, the deified Michizane, and Tokugawa Ieyasu, whose statue was moved here from the Sentō Palace in 1636. The shrine keeps a framed plaque reading "Tenka Muteki Hisshō Un", granted by Emperor Go-Uda after prayers against the Mongol fleet.

The shrine is freely accessible year-round and most easily reached by bus or walking from nearby train stations throughout Kyoto. The treasure hall displaying ancient artifacts charges a small fee and operates on limited days, particularly during the plum blossom season and early January.

The shrine's name comes from a legend that, when Sugawara no Michizane was exiled, a ray of light descended from heaven together with the deities Ten'ichi and Taishaku. During the Mongol invasions, Emperor Go-Uda had prayers for victory offered here, and after the Mongol fleet was destroyed the shrine received a plaque reading "Tenka Muteki Hisshō Un" from the emperor.