| Image Coa: | Wappen von Halblech.svg |
| Coordinates: | 47.6333°N 59°W |
| Image Plan: | Halblech in OAL.svg |
| State: | Bayern |
| Region: | Schwaben |
| District: | Ostallgäu |
| Elevation: | 800-2082 |
| Area: | 125.50 |
| Postal Code: | 87642 |
| Area Code: | 08368 |
| Licence: | OAL |
| Gemeindeschlüssel: | 09 7 77 173 |
| Mayor: | Johann Gschwill[1] |
| Leader Term: | 2020 - 26 |
| Website: | www.halblech.de |
Halblech is a municipality in the district of Ostallgäu in Bavaria in Germany. It is named after the nearby Halblech River.
In 1976, the former municipalities of Buching and Trauchgau were merged into Halblech.