| Ertij Fort | |
| Location: | Vayots Dzor Province, Armenia |
| Map Type: | Armenia |
| Coordinates: | 39.7304°N 45.2686°W |
| Map Size: | 275 |
| Type: | Fortress |
| Built: | 13th century |
| Materials: | Stone |
| Condition: | Some walls remain. |
| Open To Public: | Yes |
Ertij is a fort built during the 13th century. It is situated upon a hill adjacent to the village of Arpi in the Vayots Dzor Province of Armenia. Nearby in the gorge carved by the Arpa River is the cave shrine of Jrovank.