The Helmet of Iron Gates (Romanian: Coiful de la Porțile de Fier) is a Geto-Dacian silver helmet dating from the 4th century BC, housed in the Detroit Institute of Arts, United States. It probably comes from Iron Gates area, in the Mehedinți County, Romania. Formerly it was in the collection of Franz Tau, Vienna. The helmet is similar to the Helmet of Coțofenești, Helmet of Peretu, Helmet of Agighiol and Helmet of Cucuteni-Băiceni, all being ancient Getian gold or silver helmets discovered so far on the territory of Romania.