Ozinki is an urban locality situated in the Ozinsky District of Saratov Oblast, Russia. The settlement is notably positioned adjacent to the international border between Russia and Kazakhstan.
According to census data, the population of Ozinki has fluctuated over recent decades. It recorded a population of 13,129 during the 1989 Soviet census, decreasing to 9,806 in 2002, and further declining to 9,249 by the 2010 census.