| Bettancourt-la-Longue | |
| Commune Status: | Commune |
| Arrondissement: | Vitry-le-François |
| Canton: | Sermaize-les-Bains |
| Insee: | 51057 |
| Postal Code: | 51330 |
| Mayor: | Jean-Marie Tassinari[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.8294°N 4.8892°W |
| Area Km2: | 6.09 |
Bettancourt-la-Longue (in French pronounced as /bɛtɑ̃kuʁ la lɔ̃ɡ/) is a commune in the Marne department in northeastern France.
The village lies on the right bank of the Chée, which flows southwest through the southeastern part of the commune.