​OHLIGS, a town of Germany, in the Prussian Rhine Province, 17 m. by rail N. of Cologne, on the railway to Elberfeld. Pop. (1905) 24,264. Its chief manufactures are cutlery and hardware, and there are iron-foundries and flour-mills. Other industries are brewing, dyeing, weaving and brick-making. Before 1891 it was known as Merscheid.