| Arnac-la-Poste | |
| Commune Status: | Commune |
| Coordinates: | 46.2775°N 1.3747°W |
| Insee: | 87003 |
| Postal Code: | 87160 |
| Arrondissement: | Bellac |
| Canton: | Châteauponsac |
| Intercommunality: | CC Haut-Limousin en Marche |
| Mayor: | Sophie Drieux[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 249 |
| Elevation Max M: | 384 |
| Area Km2: | 46.62 |
Arnac-la-Poste (in French pronounced as /aʁnak la pɔst/; Occitan (post 1500);: Arnac) is a commune in the Haute-Vienne department in the Nouvelle-Aquitaine region in western France.
The river Benaize forms part of the commune's northern border. The river Brame flows westward through the commune's southern part.