| Champigny-le-Sec | |
| Arrondissement: | Poitiers |
| Canton: | Migné-Auxances |
| Commune: | Champigny en Rochereau |
| Insee: | 86053 |
| Postal Code: | 86170 |
| Coordinates: | 46.7161°N 0.1556°W |
| Elevation M: | 123 |
| Elevation Min M: | 93 |
| Elevation Max M: | 141 |
| Area Km2: | 24.31 |
| Population: | 1110 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Champigny-le-Sec is a former commune in the Vienne department in the Nouvelle-Aquitaine region in western France. On 1 January 2017, it was merged into the new commune Champigny en Rochereau.[2]