| Détain-et-Bruant | |
| Commune Status: | Commune |
| Arrondissement: | Beaune |
| Canton: | Longvic |
| Insee: | 21228 |
| Postal Code: | 21220 |
| Mayor: | Sonia Loth[1] |
| Term: | 2022 - 2026 |
| Coordinates: | 47.1733°N 4.7922°W |
| Elevation M: | 617 |
| Elevation Min M: | 515 |
| Elevation Max M: | 642 |
| Area Km2: | 15.48 |
Détain-et-Bruant (in French pronounced as /detɛ̃ e bʁyɑ̃/) is a commune in the Côte-d'Or department in eastern France.
Détain-et-Bruant has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Détain-et-Bruant is . The average annual rainfall is with May 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 Détain-et-Bruant was on 11 August 1998; the coldest temperature ever recorded was on 12 January 1987.