| Official Name: | Aghavnadzor |
| Native Name: | Աղավնաձոր |
| Pushpin Map: | Armenia#Vayots Dzor |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Name: | Armenia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Vayots Dzor |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Areni |
| Population Footnotes: | [1] |
| Population As Of: | 2011 |
| Population Total: | 1,890 |
| Utc Offset: | +4 |
| Coordinates: | 39.7836°N 45.2281°W |
Aghavnadzor (Armenian: Աղավնաձոր) is a village in the Areni Municipality of the Vayots Dzor Province in Armenia.
The 12th-century church of Saint Astvatsatsin is 4 km northeast of Aghavnadzor, with a funerary monument from the year 1009 nearby. The ruins of a caravanserai are located 4 km to the northwest, and 4 km north is the 13th to 14th-century Ul Gyughi church. The 13th-century Aghjkaberd fortress is located 1 km east of the village.
The village was previously known as Aynadzor and Aynazur.