Arkadak (Russian: Аркада́к) is a town and the administrative center of Arkadaksky District of Saratov Oblast, Russia, located on the Bolshoy Arkadak River near its confluence with the Khopyor, 248 kilometers (154 mi) west of Saratov. Population: 12,846 (2010 Census preliminary results); 14,438 (2002 Census); 14,244 (1989 Census).