Sensō-ji (金龍山浅草寺, Kinryū-zan Sensō-ji^?) is an ancient Buddhist temple located in Asakusa, Taitō, Tokyo, Japan. It is Tokyo's oldest temple, and one of its most significant. Formerly associated with the Tendai sect, it became independent after World War II. Adjacent to the temple is a Shinto shrine, the Asakusa Shrine.

The temple is dedicated to the bodhisattva Kannon, also known as Guan Yin or the Goddess of Mercy. According to legend, a statue of the Kannon was found in the Sumida River in 628 by two fishermen, the brothers Hinokuma Hamanari and Hinokuma Takenari. The chief of their village, Hajino Nakamoto, recognized the sanctity of the statue and enshrined it by remodeling his own house into a small temple in Asakusa, so that the villagers could worship the Kannon.

The first temple was built on the site in 645, which makes it the oldest temple in Tokyo. In the early years of the Tokugawa shogunate, Tokugawa Ieyasu designated Sensō-ji as tutelary temple of the Tokugawa clan.

The Nishinomiya Inari Shrine is located within the precincts of Sensō-ji; and a torii identifies the entry into the hallowed ground of a Shinto shrine. A bronze plaque on the gateway structure lists those who contributed to the construction of the torii, which was erected in 1727 (Kyōhō 12, 11th month).