Ernst Friedrich of Saxe-Hildburghausen
Ernst Friedrich von Sachsen-Hildburghausen is the name of the following people:
- Ernst Friedrich I (Saxony-Hildburghausen) (1681–1724), Duke of Saxony-Hildburghausen
- Ernst Friedrich II (Saxony-Hildburghausen) (1707–1745), Duke of Saxony-Hildburghausen
- Ernst Friedrich III. (Saxony-Hildburghausen) (1727–1780), Duke of Saxony-Hildburghausen