Ernst August of Saxe-Weimar-Eisenach

Ernst August von Sachsen-Weimar-Eisenach is the name of the following people:

• Ernst August I (Saxe-Weimar-Eisenach) (1688–1748), Duke of Saxe-Weimar and of Saxe-Eisenach
• Ernst August II (Saxe-Weimar-Eisenach) (1737–1758), Duke of Saxe-Weimar and Saxe-Eisenach

This is a disambiguation page for differentiating between several terms identified with the same word.