| Official Name: | Qoşasu |
| Pushpin Map: | Azerbaijan#East Zangezur |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Azerbaijan |
| Subdivision Type1: | District |
| Subdivision Name1: | Lachin |
| Coordinates: | 39.7789°N 46.34°W |
| Population Footnotes: | [1] |
| Population As Of: | 2005 |
| Population Total: | 34 |
| Timezone: | AZT |
| Utc Offset: | +4 |
| Elevation Ft: | 6,207 |
| Elevation M: | 1,891 |
Qoşasu is a village in the Lachin District of Azerbaijan.
The village was located in the Armenian-occupied territories surrounding Nagorno-Karabakh, coming under the control of ethnic Armenian forces on May 17, 1992 during the First Nagorno-Karabakh War.[2] [3] The village subsequently became part of the breakaway Republic of Artsakh as part of its Kashatagh Province, referred to as Ani (Armenian: Անի), being part of the Drakhtadzor community. The village was returned to Azerbaijan as part of the 2020 Nagorno-Karabakh ceasefire agreement.