| Breitenberg | |
| Image Coa: | Wappen Breitenberg (Niederbayern).svg |
| Coordinates: | 48.7°N 61°W |
| Image Plan: | Breitenberg in PA.svg |
| State: | Bayern |
| Region: | Niederbayern |
| District: | Passau |
| Elevation: | 695 |
| Area: | 29.87 |
| Postal Code: | 94139 |
| Area Code: | 08584 |
| Licence: | PA |
| Gemeindeschlüssel: | 09 2 75 118 |
| Website: | www.breitenberg.de |
| Mayor: | Adolf Barth[1] |
| Leader Term: | 2020 - 26 |
Breitenberg is a municipality in the district of Passau in Bavaria in Germany. It lies on the border with Austria, and is the easternmost municipality of Bavaria.