Tsarev () is a rural locality (a selo) and the administrative center of Tsarevskoye Rural Settlement, Leninsky District, Volgograd Oblast, Russia. The population was 1,521, as of 2010. There are 19 streets.
Tsarev is located on the left bank of the Akhtuba River, 19 km southeast of Leninsk (the district's administrative centre) by road. Saray is the nearest rural locality.