| Saint-Martin-Rivière | |
| Commune Status: | Commune |
| Arrondissement: | Vervins |
| Canton: | Guise |
| Insee: | 02683 |
| Postal Code: | 02110 |
| Mayor: | Étienne Plateau[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 50.0442°N 3.5406°W |
| Elevation M: | 100 |
| Elevation Min M: | 108 |
| Elevation Max M: | 163 |
| Area Km2: | 5.52 |
Saint-Martin-Rivière (in French pronounced as /sɛ̃ maʁtɛ̃ ʁivjɛʁ/) is a commune in the Aisne department in Hauts-de-France in northern France.