| Blaisy-Bas | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Blaisy-Bas (21).svg |
| Arrondissement: | Dijon |
| Canton: | Talant |
| Insee: | 21080 |
| Postal Code: | 21540 |
| Mayor: | Alain Lamy[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.3733°N 4.7408°W |
| Elevation M: | 418 |
| Elevation Min M: | 381 |
| Elevation Max M: | 585 |
| Area Km2: | 13.27 |
Blaisy-Bas (in French pronounced as /blɛzi ba/) is a commune in the Côte-d'Or department in eastern France.