Swiss Locomotive and Machine Works
| SLM is best known for mountain railway equipment | |
| Company type | Subsidiary | 
|---|---|
| Industry | Rail transport | 
| Founded | 1871 | 
| Defunct | 2005 | 
| Successor | Stadler Rail | 
| Headquarters | Winterthur, Switzerland | 
| Area served | Worldwide | 
| Products | |
Swiss Locomotive and Machine Works (German Schweizerische Lokomotiv- und Maschinenfabrik; French Société Suisse pour la Construction de Locomotives et de Machines; or for both, SLM) was a railway equipment manufacturer based in Winterthur in Switzerland. Much of the world's mountain railway equipment was constructed by the company.