| Official Name: | İstibulaq |
| Pushpin Map: | Azerbaijan#East Zangezur |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Azerbaijan |
| Subdivision Type1: | Rayon |
| Subdivision Name1: | Kalbajar |
| Population Density Km2: | auto |
| Timezone: | AZT |
| Utc Offset: | +4 |
| Utc Offset Dst: | +5 |
| Coordinates: | 40.1753°N 46.0503°W |
İstibulaq is a village in the Chaykend municipality of the Kalbajar District of Azerbaijan.
The village was occupied by the Armed Forces of Armenia in 1993 during the First Nagorno-Karabakh War. It was returned to Azerbaijan on 25 November 2020.