| Rettenbach | |
| Image Coa: | DEU Rettenbach (Oberpfalz) COA.svg |
| Coordinates: | 49.0703°N 12.4567°W |
| Image Plan: | Rettenbach in CHA.svg |
| State: | Bayern |
| Region: | Oberpfalz |
| District: | Cham |
| Verwaltungsgemeinschaft: | Falkenstein, Bavaria |
| Elevation: | 576 |
| Area: | 26.72 |
| Postal Code: | 93191 |
| Area Code: | 0 94 62 |
| Licence: | CHA |
| Gemeindeschlüssel: | 09 3 72 150 |
| Website: | www.rettenbach.de |
| Mayor: | Alois Hamperl[1] |
| Leader Term: | 2020 - 26 |
| Party: | CSU |
Rettenbach is a municipality in the district of Cham in Bavaria in Germany.