| Bun | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Bun (65).svg |
| Arrondissement: | Argelès-Gazost |
| Canton: | La Vallée des Gaves |
| Insee: | 65112 |
| Postal Code: | 65400 |
| Mayor: | Bernard Peluhet[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 42.9758°N -0.1556°W |
| Elevation M: | 830 |
| Elevation Min M: | 673 |
| Elevation Max M: | 1345 |
| Area Km2: | 2.8 |
Bun (in French pronounced as /bœ̃/) is a commune in the Hautes-Pyrénées department in southwestern France.