Tochigi Prefecture (栃木県, Tochigi-ken^?) is a prefecture located in the Kantō region on the island of Honshu, Japan. The capital is the city of Utsunomiya.

Nikkō, whose ancient Shintō shrines and Buddhist temples UNESCO has recognized by naming them a World Heritage Site, is in this prefecture. Nikkō is approximately one hour by train from Tokyo, and approximately 35 km west of the capital Utsunomiya.

Other famous parts of Tochigi include a region called Nasu known for onsen and local sake and ski resorts. The Imperial family has a villa in Nasu. Nasu-Shiobara is a major Shinkansen station.

Another onsen resort is at Kinugawa Onsen.

Situated among the inland prefectures of the northern part of the Kantō region, Tochigi is contiguous with Ibaraki, Gunma, Saitama, and Fukushima prefecture.

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 was approximately 2,005,096. The population increased until 2005,^{[citation needed]} but started to decrease in 2006, as the population of Japan decreased, too. About 500,000 people live in the prefectural capital of Utsunomiya, with the remainder dispersed over 14 other cities and 17 towns.^{[citation needed]}