| Image Coa: | Wappen Trunkelsberg.svg |
| Coordinates: | 48°N 23°W |
| Image Plan: | Trunkelsberg in MN.svg |
| State: | Bayern |
| Region: | Schwaben |
| District: | Unterallgäu |
| Verwaltungsgemeinschaft: | Memmingerberg |
| Elevation: | 625 |
| Area: | 1.90 |
| Postal Code: | 87779 |
| Area Code: | 08331 |
| Licence: | MN |
| Gemeindeschlüssel: | 09 7 78 202 |
| Mayor: | Roman Albrecht[1] |
| Leader Term: | 2020 - 26 |
| Party: | Grüne |
Trunkelsberg is a municipality in the district of Unterallgäu in Bavaria, Germany. The town has a municipal association with Memmingerberg.