The Volga (Russian: Во́лга; IPA: [ˈvoɫɡə] (About this sound listen)) is the longest river in Europe. It is also Europe's largest river in terms of discharge and watershed. The river flows through central Russia and into the Caspian Sea, and is widely regarded as the national river of Russia.

Eleven of the twenty largest cities of Russia, including the capital, Moscow, are located in the Volga's watershed.

Some of the largest reservoirs in the world can be found along the Volga. The river has a symbolic meaning in Russian culture and is often referred to as Волга-матушка Volga-Matushka (Mother Volga) in Russian literature and folklore.