Nikkō (日光市, Nikkō-shi; IPA: [ɲikkoꜜːɕi]) is a city in Tochigi Prefecture, Japan. As of 2 December 2020, the city's population was 80,239, in 36,531 households. The population density was 55 persons per km. The total area of the city is 1,449.83 square kilometres (559.78 sq mi).
Nikkō is a popular destination for Japanese and international tourists. Attractions include the mausoleum of shōgun Tokugawa Ieyasu at the Nikkō Tōshō-gū shrine, and that of his grandson Tokugawa Iemitsu (Iemitsu-byō Taiyū-in), along with Futarasan shrine, which dates to the year 767. There are many famous onsen (hot springs) in the area. Elevations range from 200 to 2,000 meters.