For the similarly named establishment in Wales, see Tredegar Ironworks (Wales).

The Tredegar Iron Works was a historic iron works in Richmond, the capital of the U.S. state of Virginia. Opened in 1837, by 1860 it was the third-largest iron manufacturer in the United States. During the American Civil War, the works served as the primary iron and artillery production facility of the Confederate States of America. The iron works avoided destruction during the Evacuation Fire of 1865, and continued production through the middle of the 20th century.