Class 25
- AB-25-class patrol craft
- Belgian Railways Class 25
- Belgian Railways Class 25.5
- British Rail Class 25
- DR Class 25.10
- DRG Class 25 (disambiguation)
- DRG Class ET 25
- Deutsche Reichsbahn (East Germany)
- EAR 25 class
- Neubaulokomotive
- New South Wales Z25 class locomotive
- PKP class SM25
- South African Class 25 4-8-4
- South African Class 25NC 4-8-4
- V25-class torpedo boat
- World War II