GERRESHEIM, a town of Germany, in the Prussian Rhine Province, 6 m. by rail E. of Düsseldorf. It contains a fine Romanesque church, dating from the 13th century, which forms a portion of an ancient nunnery (founded in the 10th century and secularized in 1806), and has extensive glass manufactures and wire factories. Pop. (1905) 14,434.