| Castelfranc | |
| Commune Status: | Commune |
| Arrondissement: | Cahors |
| Canton: | Luzech |
| Insee: | 46062 |
| Postal Code: | 46140 |
| Mayor: | Laurent Bolos[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC de la Vallée du Lot et du Vignoble |
| Coordinates: | 44.5011°N 1.2231°W |
| Elevation M: | 110 |
| Elevation Min M: | 80 |
| Elevation Max M: | 270 |
| Area Km2: | 5.71 |
Castelfranc (in French pronounced as /kastɛlfʁɑ̃/; Occitan (post 1500);: Castèlfranc) is a commune in the Lot department in south-western France.