| Image Coa: | DEU Rettenbach a. Auerberg COA.svg |
| Coordinates: | 47.7667°N 55°W |
| Image Plan: | Rettenbach am Auerberg in OAL.svg |
| State: | Bayern |
| Region: | Schwaben |
| District: | Ostallgäu |
| Verwaltungsgemeinschaft: | Stötten am Auerberg |
| Elevation: | 832 |
| Area: | 12.92 |
| Postal Code: | 87675 |
| Area Code: | 08860 |
| Licence: | OAL |
| Gemeindeschlüssel: | 09 7 77 183 |
| Website: | www.rettenbach-am-auerberg.de |
| Mayor: | Reiner Friedl[1] |
| Leader Term: | 2020 - 26 |
Rettenbach am Auerberg (Swabian: Reatebach) is a municipality in the district of Ostallgäu in Bavaria in Germany.