| Landifay-et-Bertaignemont | |
| Commune Status: | Commune |
| Arrondissement: | Vervins |
| Canton: | Marle |
| Insee: | 02403 |
| Postal Code: | 02120 |
| Mayor: | Sandrine Beaud'Huin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Thiérache du Centre |
| Coordinates: | 49.8178°N 3.6069°W |
| Elevation M: | 113 |
| Elevation Min M: | 77 |
| Elevation Max M: | 153 |
| Area Km2: | 19.6 |
Landifay-et-Bertaignemont is a commune in the Aisne department in Hauts-de-France in northern France.