Red Iron or Iron Red may refer to:

• Iron(III) oxide, a common red oxide of iron
• Red Iron, an iron oxide-based ceramic colorant
• Rust, rusted, or rusty iron
• Iron Ore, which may be Hematite (literally, blood-like stone), Taconite, or other types red-colored iron ore
• A particular place, street, or business name in the Mesabi Range or similar iron ore mining region
• Structural steel, because it is often manufactured with no rust protection or with only a red oxide coating
• A business or service name for organizations that sell or install structural steel
• Red Iron Lake, a lake group in South Dakota
• Red Iron! (1940 book), the story of a young civil engineer, set in the Depression, by Courtney Parmly Brown

Also:

• Red Iron (Ma-za-sha), a Sioux Chief, signer of Treaty of Traverse des Sioux, and lifetime ambassador for peace who rescued hundreds of settlers taken captive in the Dakota War of 1862