DUISBURG, a town of Rhenish Prussia, capital of a cognominal circle in the government of Düsseldorf, between the rivers Anger and Ruhr, about a league above the confluence of the latter with the Rhine, and 18 miles north of Düsseldorf. Pop. (1849) 8948. It has a gymnasium and several minor schools, botanic garden, observatory, library, and orphan asylum. Manufactures—woollen and cotton goods, silks, leather, glue, tobacco, soap. It communicates by canal with the Rhine; has ship-building docks and a considerable trade. There are iron-works in the vicinity.