Carnforth MPD (Motive Power Depot) is a former London Midland and Scottish Railway railway depot located in the town of Carnforth, Lancashire, England.
Completed in 1944 on the site of the former Furness Railway depot, its late construction in the steam locomotive age resulted in its long-term use and conservation by British Railways. Targeted as part of a preservation scheme, when this failed it was developed as major visitor attraction Steamtown Carnforth. Today, closed as a museum, it acts as the major national operational base of West Coast Railways.