INGELHEIM (Ober-Ingelheim and Nieder-Ingelheim), the name of two contiguous market-towns of Germany, in the Land of Hesse, on the Selz, near its confluence with the Rhine, 9 m. W.S.W. of Mainz on the railway to Coblenz. Ober-Ingelheim, formerly an imperial town, is still surrounded by walls. Its chief industry is the manufacture of red wine. Pop. (1933) 4,111. Nieder-Ingelheim has in addition to wine, manufactories of machinery, chemicals, malt and limestone quarries. Pop. (1933) 5,16o.
Nieder-Ingelheim is, according to one tradition, the birthplace of Charlemagne, and it possesses the ruins of an old palace built by that emperor between 768 and 774