Solnechnogorsky 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. The area of the district is . Its administrative center is the town of Solnechnogorsk. Population: 128,580 (2010 Census); The population of Solnechnogorsk accounts for 41.2% of the district's total population.