| Saint-Étienne-du-Bois | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Etienne-du-Bois (Ain).svg |
| Arrondissement: | Bourg-en-Bresse |
| Canton: | Saint-Étienne-du-Bois |
| Insee: | 01350 |
| Postal Code: | 01370 |
| Mayor: | Alain Chapuis[1] |
| Term: | 2022 - 2026 |
| Intercommunality: | CA Bassin de Bourg-en-Bresse |
| Coordinates: | 46.2886°N 5.2942°W |
| Elevation M: | 235 |
| Elevation Min M: | 213 |
| Elevation Max M: | 259 |
| Area Km2: | 28.38 |
Saint-Étienne-du-Bois (in French pronounced as /sɛ̃tetjɛn dy bwa/) is a commune in the Ain department, eastern France.
The Sevron forms part of the commune's eastern border then flows northwest through the commune.
Saint-Étienne-du-Bois has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Saint-Étienne-du-Bois is . The average annual rainfall is with October 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 Saint-Étienne-du-Bois was on 13 August 2003; the coldest temperature ever recorded was on 30 December 2005.