McLouth Steel
| Industry | Steel |
|---|---|
| Founded | 1934 |
| Defunct | 1996 |
| Fate | Bankruptcy |
| Successor | Detroit Steel Company |
| Headquarters | Detroit, Michigan 1934–1981, Trenton, Michigan 1982–1996 |
Key people | Donald B. McLouth |
| Products | Low carbon and stainless strip steel |
McLouth Steel is a former integrated steel company. The company was once the ninth-largest steelmaker in the United States.
The company had three locations: the first was in Detroit, Michigan, the second (and largest) in Trenton, Michigan, and the third in Gibraltar, Michigan. The Detroit and Trenton plants have been demolished, while the Gibraltar plant has been restarted by Ferrolux.