This is a list of preserved locomotives in the United States, organized by state then city or town of their last-known locations. It is intended to list all locomotives that are listed on the National Register of Historic Places or other heritage registers, or that are preserved and displayed or stored or operated at museums or heritage railways. This includes locomotives on cog railways, but is not intended to cover self-propelled railcars or multiple units or locomotives of miniature railroads.
The permanent or usual locations are identified by coordinates where possible; these locations may be seen together by clicking on "Map all coordinates using: OpenStreetMap" at the right side of this page.
There are many preserved locomotives in the United States which are not individually listed above. Numerous ones are preserved at railway museums and heritage railways, These include: