Friedrich of Saxe-Gotha-Altenburg
Friedrich von Sachsen-Gotha-Altenburg is the name of the following people:
- Friedrich I (Saxe-Gotha-Altenburg) (1646–1691), Duke of Saxe-Altenburg
- Friedrich II (Saxe-Gotha-Altenburg) (1676–1732), Duke of Saxe-Altenburg
- Friedrich III. (Saxe-Gotha-Altenburg) (1699–1772), Duke of Saxe-Altenburg
- Friedrich IV (Saxe-Gotha-Altenburg) (1774–1825), Duke of Saxe-Altenburg
