| Breitenbrunn | |
| Image Coa: | Wappen Breitenbrunn (Schwaben).svg |
| Coordinates: | 48.1333°N 33°W |
| Image Plan: | Breitenbrunn in MN.svg |
| State: | Bayern |
| Region: | Schwaben |
| District: | Unterallgäu |
| Verwaltungsgemeinschaft: | Pfaffenhausen |
| Elevation: | 552 |
| Area: | 41.92 |
| Postal Code: | 87739 |
| Area Code: | 08263 |
| Licence: | MN |
| Gemeindeschlüssel: | 09 7 78 121 |
| Divisions: | 9 Ortsteile |
| Mayor: | Jürgen Tempel[1] |
| Leader Term: | 2020 - 26 |
Breitenbrunn is a municipality in the district of Unterallgäu in Bavaria, Germany. The town has a municipal association with Pfaffenhausen.