| Longpré-le-Sec | |
| Commune Status: | Commune |
| Arrondissement: | Bar-sur-Aube |
| Canton: | Vendeuvre-sur-Barse |
| Insee: | 10205 |
| Postal Code: | 10140 |
| Mayor: | Alexandre Mocquart[1] |
| Term: | 2020 - 2026 |
| Elevation M: | 211 |
| Area Km2: | 15.71 |
Longpré-le-Sec (in French pronounced as /lɔ̃pʁe lə sɛk/) is a commune in the Aube department in north-central France.