| Bias | |
| Commune Status: | Commune |
| Arrondissement: | Mont-de-Marsan |
| Canton: | Côte d'Argent |
| Insee: | 40043 |
| Postal Code: | 40170 |
| Mayor: | Elisabeth Etcheverria[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Mimizan |
| Coordinates: | 44.1469°N -1.2275°W |
| Elevation M: | 40 |
| Elevation Min M: | 20 |
| Elevation Max M: | 70 |
| Area Km2: | 20.95 |
Bias is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.[2]