| Conventional Long Name: | Duchy of Saxe-Saalfeld |
| Common Name: | Saxe-Saalfeld |
| Symbol: | Coat of arms of Saxony |
| Image Map Caption: | Saxe-Saafeld, shown within the other Ernestine duchies |
| Era: | Middle Ages |
| Status: | Vassal |
| Empire: | Holy Roman Empire |
| Government Type: | Principality |
| Year Start: | 1680 |
| Year End: | 1735 |
| Event Start: | Partitioned from Saxe-Gotha |
| Date Start: | |
| Event1: | United with Coburg |
| Date Event1: | August 6, 1699 |
| Event End: | Duchy renamed onImperial decision ofErnestine succession |
| Date End: | |
| P1: | Saxe-Gotha |
| Flag P1: | Coat of arms of Saxony.svg |
| Border P1: | no |
| S1: | Saxe-Coburg-Saalfeld |
| Capital: | Saalfeld |
The Duchy of Saxe-Saalfeld was one of the Saxon Duchies held by the Ernestine line of the Wettin Dynasty. Established in 1680 for Johann Ernst, seventh son of Ernest I, Duke of Saxe-Gotha. It remained under this name until 1699, when Albert, Duke of Saxe-Coburg died without sons. His brother Johann Ernst of Saxe-Saalfeld became the new Duke of Coburg and the duchy was renamed into Saxe-Coburg-Saalfeld in 1735.
Renamed Saxe-Coburg-Saalfeld