| Mensignac | |
| Commune Status: | Commune |
| Arrondissement: | Périgueux |
| Canton: | Saint-Astier |
| Insee: | 24266 |
| Postal Code: | 24350 |
| Mayor: | Véronique Chabreyrou[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Le Grand Périgueux |
| Coordinates: | 45.2261°N 0.5617°W |
| Elevation M: | 170 |
| Elevation Min M: | 92 |
| Elevation Max M: | 231 |
| Area Km2: | 26.08 |
Mensignac (in French pronounced as /mɑ̃siɲak/; Occitan (post 1500);: Mencinhac) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.