| Lacassagne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lacassagne (65).svg |
| Arrondissement: | Tarbes |
| Canton: | Val d'Adour-Rustan-Madiranais |
| Insee: | 65242 |
| Postal Code: | 65140 |
| Mayor: | Julie Carassus-Barragat[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.3578°N 0.1497°W |
| Elevation M: | 255 |
| Elevation Min M: | 219 |
| Elevation Max M: | 299 |
| Area Km2: | 6.65 |
Lacassagne (pronounced as /fr/; oc|La Cassanha) is a commune in the Hautes-Pyrénées department in south-western France.