| Saint-Martin-des-Champs | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Saint-Martin-des-Champs (89).svg |
| Coordinates: | 47.6575°N 3.0353°W |
| Insee: | 89352 |
| Postal Code: | 89170 |
| Arrondissement: | Auxerre |
| Canton: | Cœur de Puisaye |
| Mayor: | Bernadette Hermier[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 172 |
| Elevation Max M: | 234 |
| Area Km2: | 34.22 |
Saint-Martin-des-Champs (in French pronounced as /sɛ̃ maʁtɛ̃ de ʃɑ̃/) is a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France.