Shōun-ji, Buddhist temple in Toshima, Japan

Shōun-ji is a Buddhist temple in Toshima-ku, Tokyo, made up of several buildings including a main prayer hall and a memorial hall used for services. Maple trees line the walkways across the grounds, and hydrangeas bloom along the paths in the warmer months.

Shōun-ji was founded in 1532 by Tōyama Hayato no Shō Kagehisa, a senior retainer of the Later Hōjō clan and castellan of Edo, as a branch temple of Komagome Kichijō-ji, with the Sōtō monk Ōshū Anjū as founding abbot; it was first called Jōkō-in. It took its present name in 1709. Originally within the Wada-kura gate of Edo Castle, it moved repeatedly as the castle expanded and reached Ikebukuro in 1915.

Shōun-ji belongs to the Sōtō Zen school, a Buddhist tradition that places great importance on seated meditation and daily practice. Visitors can enter the main hall and sit for a while, and the space feels genuinely in use rather than purely ceremonial.

Shōun-ji stands in Ikebukuro 3-chōme, Toshima-ku, a short walk from the Ikebukuro station area. The temple grounds moved to this Ikebukuro site in 1915, so the address is the one to give a taxi driver. The main hall is occasionally used for a café called "Bōzu'n coffee", so opening times vary.

The cemetery holds the grave of manga artist Shōtarō Ishinomori, creator of Cyborg 009 and Kamen Rider, alongside that of Wang Yude, a linguist and campaigner for Taiwanese independence. The temple also runs an occasional café called Bōzu'n Coffee inside its halls.