| Ceillac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Ceillac.svg |
| Arrondissement: | Briançon |
| Canton: | Guillestre |
| Insee: | 05026 |
| Postal Code: | 05600 |
| Mayor: | Emile Chabrand[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Guillestrois et Queyras |
| Coordinates: | 44.6681°N 6.7775°W |
| Elevation M: | 1640 |
| Elevation Min M: | 1224 |
| Elevation Max M: | 3381 |
| Area Km2: | 96.05 |
Ceillac (pronounced as /fr/; oc|Celhac) is a commune in the Hautes-Alpes department in southeastern France.
Ceillac has a humid continental climate (Köppen climate classification Dfb). The average annual temperature in Ceillac is . The average annual rainfall is with October as the wettest month. The temperatures are highest on average in July, at around, and lowest in January, at around . The highest temperature ever recorded in Ceillac was on 27 June 2019; the coldest temperature ever recorded was on 10 February 1986.