is a prefecture of Japan located in the Kantō region of Honshu. Tochigi Prefecture has a population of 1,897,649 (1 June 2023) and has a geographic area of 6,408 km2 (2,474 sq mi). Tochigi Prefecture borders Fukushima Prefecture to the north, Gunma Prefecture to the west, Saitama Prefecture to the south, and Ibaraki Prefecture to the southeast.
Utsunomiya is the capital and largest city of Tochigi Prefecture, with other major cities including Oyama, Tochigi, and Ashikaga. Tochigi Prefecture is one of only eight landlocked prefectures and its mountainous northern region is a popular tourist region in Japan. The Nasu area is known for its onsens, local sake, and ski resorts, the villa of the Imperial Family, and the station of the Shinkansen railway line. The city of Nikkō, with its ancient Shintō shrines and Buddhist temples, is a UNESCO World Heritage Site.
Situated among the inland prefectures of the northern part of the Kantō region, Tochigi is contiguous with Ibaraki, Gunma, Saitama, and Fukushima Prefectures.
The climate of Tochigi may be classified as a humid temperate zone with broad variations in temperature. Winters are arid with dry winds, while summers are humid with frequent thunderstorms.
The population of Tochigi as of November 2010 is approximately 2,005,096.
Located in the center of the prefecture is the largest open plain in the Kantō region. Shirane (), Nantai () and Nasudake () mountain are in the northern part of the area. Kinugawa, Nakagawa, and Watarase River originate in this region, which flow across the Kanto plain before emptying into the Pacific Ocean. Tochigi is the 20th largest prefecture in Japan with a total area of 6,408.09 square km.
As of 1 April 2012, 21% of the total land area of the prefecture was designated as Natural Parks, namely Nikkō National Park, Oze National Park, and eight Prefectural Natural Parks.
Historic Sites of Tochigi Prefecture
Before the Meiji Restoration, Tochigi was known as Shimotsuke Province.