Dhamtari, town, central Chhattisgarh state, east-central India. It is located in the southern part of the Chhattisgarh Plain, just west of the Mahanadi River.
The town is a rail-spur terminus and a trade centre for agricultural and forest products. Rice and flour milling and shellac manufacture are the chief industries. Dhamtari has an industrial school and colleges affiliated with Pandit Ravishankar Shukla University in Raipur. It was constituted a municipality in 1881. Pop. (2001) 82,111; (2011) 89,860.