| Lanquais | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lanquais (Dordogne).svg |
| Arrondissement: | Bergerac |
| Canton: | Lalinde |
| Insee: | 24228 |
| Postal Code: | 24150 |
| Mayor: | Michel Blanchet[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.8244°N 0.6708°W |
| Elevation M: | 87 |
| Elevation Min M: | 40 |
| Elevation Max M: | 173 |
| Area Km2: | 14.48 |
Lanquais (in French pronounced as /lɑ̃kɛ/; Occitan (post 1500);: Lencais) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.