Mashiko is a town located in Tochigi Prefecture, Japan. As of 1 August 2020, the town had an estimated population of 21,841 in 7914 households, and a population density of 240 persons per km2. The total area of the town is 89.40 square kilometres (34.52 sq mi). Mashiko is known for its pottery, called Mashiko ware (益子焼).

Tochigi Prefecture is a landlocked prefecture of Japan located in the Kantō region of Honshu. Tochigi Prefecture has a population of 1,897,649 and has a geographic area of 6,408 km². Tochigi Prefecture borders Fukushima Prefecture to the north, Gunma Prefecture to the west, Saitama Prefecture to the south, and Ibaraki Prefecture to the southeast.