Klinsky District () is an administrative and municipal district (raion), one of the thirty-six in Moscow Oblast, Russia. It is located in the northwest of the oblast and borders with Tver Oblast in the north, Lotoshinsky District in the northwest, Volokolamsky District in the west, Istrinsky District in the south, Solnechnogorsky District in the southeast, and with Dmitrovsky District in the east. The area of the district is . Its administrative center is the town of Klin. Population: 127,938 (2002 Census); The population of Klin accounts for 63.1% of the district's total population.
The northern part of the district is mostly flat, while the southern part is mostly hilly. About half of the district's territory is covered by forests. The Sestra River flows through the district.
It was originally called the Klinskaya volost, but in 1929 it was renamed the Klinsky district. In 2019 It became part of the Solnechnogorsk City District, and in 2022 the Klin city district was formed.