| Official Name: | Aygestan / Ballyja |
| Native Name: | Այգեստան / Ballıca |
| Pushpin Map: | Azerbaijan#Karabakh |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Azerbaijan |
| Subdivision Type1: | District |
| Subdivision Name1: | Khojaly |
| Area Total Km2: | 2283.46 |
| Population Footnotes: | [1] |
| Population As Of: | 2015 |
| Population Total: | 1,084 |
| Timezone: | AZT |
| Utc Offset: | +4 |
| Coordinates: | 39.8658°N 46.7233°W |
| Elevation M: | 1084 |
Aygestan (Armenian: Այգեստան) or Ballyja (Armenian: Բալուջա|Baluja; Azerbaijani: Ballıca) is a village in the Khojaly District of Azerbaijan. The village has an ethnic Armenian-majority population, and also had an Armenian majority in 1989.[2] Prior to the 2023 Azerbaijani offensive, it was de facto controlled by the Republic of Artsakh.[3]
The modern village was founded in the 17th century.[4] During the Soviet period, the village was part of the Askeran District of the Nagorno-Karabakh Autonomous Oblast.
Historical heritage sites in and around the village include tombs from the 2nd–1st centuries BCE, a 12th/13th-century village, the 12th/13th-century Tamtsi Church (Armenian: Թամցի եկեղեցի), the 12th/13th-century shrine of Prshni Nahatak (Armenian: Փռշնի Նահատակ), a 13th-century khachkar, a cemetery from between the 17th and 19th centuries, and the church of Surb Astvatsatsin (Armenian: Սուրբ Աստվածածին,) built in 1850.[1]
The population is mainly engaged in agriculture and animal husbandry, as well as in different state institutions. As of 2015, the village has a municipal building, a house of culture, a secondary school, a kindergarten, and a medical centre.[1] The village is home to the Artsakh Brandy Company.[5]
The village had 1,091 inhabitants in 2005,[6] and 1,084 inhabitants in 2015.[1]