| Eternal Allegiance | |
| Music: | Willy Schmidt-Gentner |
| Distributor: | National Film |
| Runtime: | 114 minutes |
| Country: | Germany |
Eternal Allegiance (German: '''In Treue stark''') is a 1926 German silent drama film directed by and starring Otto Gebühr, Claire Rommer, and Paul Richter. It was shot at the National Studios in Berlin. The film's sets were designed by the art director Max Knaake.