Willesden Traction Maintenance Depot
| London Overground units and a Class 87 at Willesden TMD. | |
| Location | |
|---|---|
| Location | Willesden, London, England | 
| Coordinates | 51°31′52″N 0°14′23″W / 51.5312°N 0.2397°W | 
| OS grid | TQ220828 | 
| Characteristics | |
| Owner | Alstom | 
| Depot code | WN (1973-) | 
| Type | Electric | 
| History | |
| Original | British Rail | 
| BR region | London Midland Region | 
| Former depot code | 1A (until 1973) | 
Willesden Traction Maintenance Depot (TMD) is a railway locomotive and electric multiple unit traction maintenance depot, situated in Harlesden, north London. The depot is situated next to the West Coast Main Line, to the south-east of Willesden Junction station and on the way into London Euston station. The depot code is WN.