Bletchley TMD
| Looking north from Bletchley station, the stabling sidings in the distance. | |
| Location | |
|---|---|
| Location | Bletchley,Milton Keynes, United Kingdom | 
| Coordinates | 52°00′03″N 0°43′53″W / 52.0008°N 0.7313°W | 
| OS grid | SP870344 | 
| Characteristics | |
| Owner | London Northwestern Railway | 
| Depot code | 
 | 
| Type | Diesel, DMU, EMU | 
| History | |
| Opened | 1850 | 
| Original | London and North Western Railway | 
| Pre-grouping | London Midland Scottish Railway | 
| Post-grouping | British Rail | 
Bletchley TMD is a railway traction maintenance depot situated in Bletchley, Milton Keynes in Buckinghamshire, to the north east of Bletchley railway station, on a siding off the Marston Vale line. The depot is operated by West Midlands Trains (trading as London Northwestern Railway).