The Mga is a river in Kirovsky and Tosnensky Districts of Leningrad Oblast in northwestern Russia. Mga is a left tributary of Neva River. The urban-type settlements of Mga and Pavlovo are located on the river. The length of the Mga is , and the area of its basin is . The principal tributaries of the Mga are the Beryozovka (right) and the Voytolovka (left).