| Sontheim | |
| Image Coa: | DEU Sontheim COA.svg |
| Coordinates: | 48°N 31°W |
| Image Plan: | Sontheim in MN.svg |
| State: | Bayern |
| Region: | Schwaben |
| District: | Unterallgäu |
| Elevation: | 620 |
| Area: | 26.53 |
| Postal Code: | 87776 |
| Area Code: | 08336 |
| Licence: | MN |
| Gemeindeschlüssel: | 09 7 78 196 |
| Website: | www.sontheim.de |
| Mayor: | Alfred Gänsdorfer[1] |
| Leader Term: | 2020 - 26 |
Sontheim is a municipality in the district of Unterallgäu in Bavaria, Germany.