| Grézian | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Grézian (65).svg |
| Arrondissement: | Bagnères-de-Bigorre |
| Canton: | Neste, Aure et Louron |
| Insee: | 65209 |
| Postal Code: | 65440 |
| Mayor: | Sabine Rahali[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Aure-Louron |
| Coordinates: | 42.87°N 0.3511°W |
| Elevation M: | 745 |
| Elevation Min M: | 732 |
| Elevation Max M: | 1200 |
| Area Km2: | 1.98 |
Grézian (in French pronounced as /ɡʁezjɑ̃/; Occitan (post 1500);: Gredian) is a commune in the Hautes-Pyrénées department in south-western France.