| Marcellus | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Marcellus (Lot-et-Garonne).svg |
| Arrondissement: | Marmande |
| Canton: | Marmande-1 |
| Insee: | 47156 |
| Postal Code: | 47200 |
| Mayor: | Jean Claude Derc[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Val de Garonne Agglomération |
| Coordinates: | 44.4817°N 0.0789°W |
| Elevation M: | 70 |
| Elevation Min M: | 15 |
| Elevation Max M: | 82 |
| Area Km2: | 11.77 |
Marcellus is a commune in the Lot-et-Garonne department in south-western France.