Kamyshin (Russian: Камы́шин) is a city in Volgograd Oblast, Russia, located on the right bank of the Volgograd Reservoir of the Volga River, in the estuary of the . Its population was 119,565 at the  (2010 Census). Past populations for Kamyshin include 127,891 at the  (2002 Census) and 122,463 as of the  (1989 Census).