Longsight Electric TMD
| Longsight TMD in 2008. | |
| Location | |
|---|---|
| Location | Longsight, Greater Manchester, United Kingdom | 
| Coordinates | 53°27′41″N 2°12′00″W / 53.4615°N 2.2001°W | 
| OS grid | SJ867961 | 
| Characteristics | |
| Owner | Network Rail (leased by Alstom) | 
| Depot code | LG (1973-present) | 
| Type | EMU | 
| History | |
| Opened | 1842 | 
| BR region | London Midland Region | 
| Former depot code | 9A (1948-1973) | 
Longsight Electric TMD is an AC electric railway locomotive traction maintenance depot situated in Longsight, Manchester, England. It is one of the largest train depots in the United Kingdom and can hold 179 carriages at any one time.