| Fressancourt | |
| Commune Status: | Commune |
| Arrondissement: | Laon |
| Canton: | Tergnier |
| Insee: | 02335 |
| Postal Code: | 02800 |
| Mayor: | Michel Degouy[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Chauny Tergnier La Fère |
| Coordinates: | 49.6333°N 3.4264°W |
| Elevation M: | 68 |
| Elevation Min M: | 57 |
| Elevation Max M: | 113 |
| Area Km2: | 2.51 |
Fressancourt (in French pronounced as /fʁɛsɑ̃kuʁ/) is a commune in the Aisne department in Hauts-de-France in northern France.