| Flavigny-le-Grand-et-Beaurain | |
| Commune Status: | Commune |
| Arrondissement: | Vervins |
| Canton: | Guise |
| Insee: | 02313 |
| Postal Code: | 02120 |
| Mayor: | Olivier Hennechart[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Thiérache Sambre et Oise |
| Coordinates: | 49.8917°N 3.6653°W |
| Elevation M: | 129 |
| Elevation Min M: | 96 |
| Elevation Max M: | 161 |
| Area Km2: | 13.63 |
Flavigny-le-Grand-et-Beaurain (pronounced as /fr/) is a commune in the Aisne department in Hauts-de-France in northern France.