| Marcigny-sous-Thil | |
| Commune Status: | Commune |
| Arrondissement: | Montbard |
| Canton: | Semur-en-Auxois |
| Insee: | 21380 |
| Postal Code: | 21390 |
| Mayor: | Pascal Barrier[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.3914°N 4.3844°W |
| Elevation M: | 320 |
| Elevation Min M: | 306 |
| Elevation Max M: | 356 |
| Area Km2: | 4.97 |
Marcigny-sous-Thil (pronounced as /fr/, literally Marcigny under Thil) is a commune in the Côte-d'Or department in eastern France.