| Caignac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Caignac (Haute-Garonne).svg |
| Arrondissement: | Toulouse |
| Canton: | Escalquens |
| Insee: | 31099 |
| Postal Code: | 31560 |
| Mayor: | Serge Barthes[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.3217°N 1.7125°W |
| Elevation M: | 265 |
| Elevation Min M: | 203 |
| Elevation Max M: | 310 |
| Area Km2: | 9.36 |
Caignac (in French pronounced as /kɛɲak/; Occitan (post 1500);: Canhac) is a commune in the Haute-Garonne department in southwestern France.