| Cussac | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Flour |
| Canton: | Saint-Flour-2 |
| Insee: | 15059 |
| Postal Code: | 15430 |
| Mayor: | Guy Michaud[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.9847°N 2.9333°W |
| Elevation M: | 1070 |
| Elevation Min M: | 880 |
| Elevation Max M: | 1079 |
| Area Km2: | 13.68 |
Cussac (in French pronounced as /kysak/; Occitan (post 1500);: Cuçac) is a commune in the Cantal department in the Auvergne region in south-central France.
On August 29, 1967, two young siblings (François, 13 years old and Anne-Marie, 9 years old) claimed to have been the witnesses of a close encounter with a UFO and its occupants; the incident is now known as the close encounter of Cussac.