Mooka is a city located in Tochigi Prefecture, Japan. As of 1 August 2020, the city had an estimated population of 78,720 in 30,203 households, and a population density of 476 persons per km². The total area of the city is 167.34 square kilometres (64.61 sq mi). Moka is known for the Mooka Railway, which operates steam locomotives. The train line stretches from Shimodate, Ibaraki Prefecture to Motegi, Tochigi Prefecture. The town produces 7,000 tons of strawberries annually. The name of the city is given as "Moka City" per the city's official website; however, the local train station is "Mōka Station", and the direct transliteration of the city name into Hepburn romanization is "Mooka".

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.