| Gagnakali | |
| Settlement Type: | Sub-prefecture and town |
| Pushpin Map: | Guinea |
| Pushpin Label Position: | above |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in Guinea |
| Subdivision Type: | Country |
| Subdivision Name: |  Guinea |
| Subdivision Type1: | Region |
| Subdivision Name1: | Faranah Region |
| Subdivision Type2: | Prefecture |
| Subdivision Name2: | Dinguiraye Prefecture |
| Unit Pref: | Imperial |
| Population As Of: | 2014 |
| Population Total: | 12774 |
| Population Blank1 Title: | Ethnicities |
| Utc Offset: | +0 |
| Coordinates: | 11.8°N -11°W |
Gagnakali is a town and sub-prefecture in the Dinguiraye Prefecture in the Faranah Region of western Guinea.[1] As of 2014 it had a population of 12,774 people.[2]