| Champigny-sous-Varennes | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Champigny-sous-Varennes (52).svg |
| Arrondissement: | Langres |
| Canton: | Chalindrey |
| Insee: | 52103 |
| Postal Code: | 52400 |
| Mayor: | Eric Fallot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Savoir-Faire |
| Coordinates: | 47.8675°N 5.6433°W |
| Elevation M: | 360 |
| Area Km2: | 5.84 |
Champigny-sous-Varennes (in French pronounced as /ʃɑ̃piɲi su vaʁɛn/, literally Champigny under Varennes) is a commune in the Haute-Marne department in north-eastern France.