| Saint-Étienne-sous-Bailleul | |
| Commune Status: | Commune |
| Arrondissement: | Les Andelys |
| Canton: | Gaillon |
| Insee: | 27539 |
| Postal Code: | 27920 |
| Mayor: | Yvonne Berger[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Seine-Eure |
| Coordinates: | 49.1247°N 1.4069°W |
| Elevation M: | 123 |
| Elevation Min M: | 30 |
| Elevation Max M: | 139 |
| Area Km2: | 4.34 |
Saint-Étienne-sous-Bailleul (in French pronounced as /sɛ̃.t‿etjɛn su bajœl/) is a commune in the Eure department in the Normandy region in northern France.