Christian August, Prince of Anhalt-Zerbst (d. 1747)
Christian August, Prince of Anhalt-Zerbst (29 November 1690, in Dornburg – 16 March 1747, in Zerbst) was a German prince of the House of Ascania, and the father of Catherine the Great of Russia.

He was a ruler of the Principality of Anhalt-Dornburg. From 1742, he was a ruler of the entire Principality of Anhalt-Zerbst. He was also a Prussian Generalfeldmarschall.