| Lassigny | |
| Commune Status: | Commune |
| Arrondissement: | Compiègne |
| Canton: | Thourotte |
| Insee: | 60350 |
| Postal Code: | 60310 |
| Mayor: | Laurent Marot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays des Sources |
| Coordinates: | 49.5892°N 2.8439°W |
| Elevation M: | 80 |
| Elevation Min M: | 53 |
| Elevation Max M: | 130 |
| Area Km2: | 16.65 |
Lassigny (in French pronounced as /lasiɲi/) is a commune in the Oise department in northern France.