| Martailly-lès-Brancion | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Martailly-lès-Brancion (Saône-et-Loire).svg |
| Insee: | 71284 |
| Postal Code: | 71700 |
| Arrondissement: | Mâcon |
| Canton: | Tournus |
| Coordinates: | 46.5331°N 4.8031°W |
| Elevation M: | 250 |
| Elevation Min M: | 214 |
| Elevation Max M: | 476 |
| Area Km2: | 8.85 |
Martailly-lès-Brancion (in French pronounced as /maʁtaji lɛ bʁɑ̃sjɔ̃/) is a commune in the Saône-et-Loire department in the region of Bourgogne-Franche-Comté in eastern France.