| Sermoyer | |
| Commune Status: | Commune |
| Arrondissement: | Bourg-en-Bresse |
| Canton: | Replonges |
| Insee: | 01402 |
| Postal Code: | 01190 |
| Mayor: | Huguette Panchot[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 46.5003°N 4.9814°W |
| Elevation M: | 200 |
| Elevation Min M: | 168 |
| Elevation Max M: | 214 |
| Area Km2: | 16.7 |
Sermoyer (in French pronounced as /sɛʁmwaje/) is a commune in the Ain department in eastern France.