| Montagnac-la-Crempse | |
| Commune Status: | Commune |
| Arrondissement: | Périgueux |
| Canton: | Périgord Central |
| Insee: | 24285 |
| Postal Code: | 24140 |
| Mayor: | Jean-Claude Prevot[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.9819°N 0.5467°W |
| Elevation M: | 135 |
| Elevation Min M: | 92 |
| Elevation Max M: | 199 |
| Area Km2: | 25.49 |
Montagnac-la-Crempse (in French pronounced as /mɔ̃taɲak la kʁɛ̃ps/; Occitan (post 1500);: Montanhac de Cremsa) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.