Nikkō Tōshō-gū is a Shinto shrine located in Nikkō, Tochigi Prefecture, Japan. It is part of the "Shrines and Temples of Nikkō", a UNESCO World Heritage Site. Tōshō-gū is dedicated to Tokugawa Ieyasu, the founder of the Tokugawa shogunate. Initially built in 1617, during the Edo period, while Ieyasu's son Hidetada was shogun, it was enlarged during the time of the third shogun, Iemitsu. Ieyasu is enshrined here, and his remains are entombed here.
During the Edo period, the Tokugawa shogunate carried out stately processions from Edo to the Nikkō Tōshō-gū along the Nikkō Kaidō. The shrine's annual spring and autumn festivals reenact these occasions, and are known as "processions of a thousand warriors."