| Belgian State Railways Type 25 | |
| Powertype: | Steam |
| Builddate: | 1884–1898 |
| Totalproduction: | 472 |
| Uicclass: | C n2 |
| Fireboxtype: | Belpaire |
| Cylindercount: | Two, inside |
| Valvegear: | Walschaert |
| Operator: | Belgian State Railways |
| Operatorclass: | Type 25 |
The Belgian State Railways Type 25 was a class of steam locomotives for freight service, introduced in 1884.
The locomotives were built by various manufacturers from 1884 to 1898.The machines had an outside frame with the cylinders and the Walschaert valve gear located inside the frame.
The locomotives used two-axle tenders with .
| 81 | |||
| 58 | |||
| 49 | 1884–1898 | ||
| 60 | 1885 | ||
| 66 | 1885 | ||
| 48 | 1884–1898 | ||
| 35 | 1888–1898 | ||
| 57 | |||
| 8 | 1897–1898 | ||
| 11 | 1885–1897 |
| 4 N (1884–85) | 706 – 712 | 7 | ||
| Saint-Léonard | 4 N2 (1889) | 802 – 805 | 4 | |
| Saint-Léonard | 4 N3 (1890) | 843 – 847 | 5 | |
| Saint-Léonard | 4 N4 (1891) | 867 – 871 | 5 | |
| Saint-Léonard | 4 N5 (1891) | 888 – 891 | 4 | |
| Saint-Léonard | 4 N6 (1895) | 987 – 988 | 2 | |
| Saint-Léonard | 4 N7 (1896) | 1036 – 1042 | 7 | |
| Saint-Léonard | 4 N8 (1897) | 1070 – 1072 | 3 | |
| Saint-Léonard | 4 N9 (1898) | 1090 – 1099 | 10 | |
| Saint-Léonard | 4 N10 (1898) | 1123 – 1124 | 2 |