Iron deposits in Iran encompass a variety of geological settings. Geology, mineralogy and geochemistry of three major Fe deposits (i.e., Gol-Gohar, Sangan and Bafq) suggest that magmatic activities and induced metamotasim, both related to the subduction of either Paleo-Tethys or Neo-Tethys oceanic crust under Iranian continental plate, played a dominant role in the formation and evolution of Fe ore deposits.