August, Duke of Saxe-Merseburg-Zörbig

August, Duke of Saxe-Merseburg-Zörbig (b. Merseburg, 15 February 1655 - d. Zörbig, 27 March 1715), was a german prince of the House of Wettin.

He was the third son of Christian I, Duke of Saxe-Merseburg and Christiane of Schelswig-Holstein-Glücksburg.

Before the death of his father, August received de town of Zörbig as appanage.

In Güstrow on 1 December 1686 August married with Hedwig of Mecklenburg-Güstrow. They had eight children:

1. Christiane Magdalene (b. Zörbig, 11 March 1687 - d. Merseburg, 21 March 1689).
2. Stillborn daughter (Altstargard, Mecklenburg, 30 December 1689).
3. Caroline Auguste (b. Zörbig, 10 March 1691 - d. Zörbig, 23 September 1743).
4. Hedwig Eleonore (b. Zörbig, 26 February 1693 - d. Zörbig, 31 August 1693).
5. Gustav Frederick (b. Zörbig, 28 October 1694 - d. Zörbig, 24 May 1695).
6. August (b. Zörbig, 26 February 1696 - d. Zörbig, 26 March 1696).
7. Stillborn twin sons (1707).

Because he died without surviving male issue, Zörbig mas merged by the duchy of Saxe-Merseburg.