| Image Coa: | DEU Theilenhofen COA.svg |
| Coordinates: | 49.0833°N 61°W |
| Image Plan: | Theilenhofen in WUG.svg |
| State: | Bayern |
| Region: | Mittelfranken |
| District: | Weißenburg-Gunzenhausen |
| Verwaltungsgemeinschaft: | Gunzenhausen |
| Elevation: | 494 |
| Area: | 20.32 |
| Postal Code: | 91741 |
| Area Code: | 09834 |
| Licence: | WUG |
| Gemeindeschlüssel: | 09 5 77 172 |
| Divisions: | 5 Ortsteile |
| Website: | www.theilenhofen.de |
| Mayor: | Helmut König[1] |
| Leader Term: | 2020 - 26 |
Theilenhofen is a municipality in the Weißenburg-Gunzenhausen district, in Bavaria, Germany. An important part of the local history is the Roman camp Iciniacum, near the Limes Germanicus. This fortification and Roman village was erected around 100 AD and destroyed c. 260 AD by the Germanic Alemanni. Today you can see only the Roman Military Bath in this area. It was first found in 1820.