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Duchy of Saxe-Saalfeld Herzogtum Sachsen-Saalfeld
1680–1735
Coat of arms of Saxony
Saxe-Saafeld, shown within the other Ernestine duchies
Status	State of the Holy Roman Empire
Capital	Saalfeld
Government	Principality
Historical era	Middle Ages
• Partitioned from      Saxe-Gotha	1680
•  United with Coburg	August 6, 1699
• Duchy renamed on​ Imperial decision of​Ernestine succession	1735
Preceded by Succeeded by Saxe-Gotha Saxe-Coburg-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.

Dukes of Saxe-Saalfeld

• Johann Ernst (1675–1729)
• Christian Ernst (1729–1745)

Renamed Saxe-Coburg-Saalfeld