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This article is about the biennial festival in Tokyo. For the festival in Takayama also called Sannō Matsuri, see Takayama Festival.
Sannō Matsuri (山王祭) or the Sannō Festival, is a major Shintofestival in Tokyo, along with the Fukagawa Matsuri and Kanda Matsuri. The Festival takes place annually in mid-June, but involves a procession called Shinkosai in even-numbered years only; annual celebrations encompass a number of activities and celebrations over a week, including the day-long Shinkosai (also called Jinkosai) parade through Nagatachō, Chiyoda, Tokyo.