Big Iron is a western ballad by Marty Robbins, released in 1960.
Big Iron may also refer to: Mainframe computer, a large, powerful computer Big Iron River, a river in Ontonagon County, Michigan Big Iron (album), an album by Carol Noonan "Big Iron", an episode of Knight Rider
See also Big Iron Farm Show in West Fargo, North Dakota, USA Big Iron World, a 2006 album by Old Crow Medicine Show