Ganganagar, city, extreme northern Rajasthan state, northwestern India. It lies in a level plain of irrigated farmland about 12 miles (19 km) southeast of the Pakistan border.
During the 1970s Ganganagar grew rapidly as an agricultural distribution centre. The city has textile, sugar, and rice mills. A meteorological station and several colleges affiliated with the University of Rajasthan in Jaipur are located there. Pop. (2001) 210,713; (2011) 224,532.