Sentinel Waggon Works
| Trade mark of UK company Alley & MacLellan Ltd, Sentinel brand Jan 1949 | |
| Company type | Limited company | 
|---|---|
| Industry | Engineering | 
| Predecessor | Alley & MacLellan | 
| Founded | 1906 | 
| Defunct | 1965 ? | 
| Fate | Merged into Rolls-Royce Limited | 
| Successor | Rolls-Royce Limited | 
| Headquarters | Shrewsbury | 
| Products | Steam wagons Locomotives Diesel Lorries | 
Sentinel Waggon Works Ltd was a British company based in Shrewsbury, Shropshire that made steam-powered lorries (steam wagons), railway locomotives, and later, diesel engined lorries, buses and locomotives.