Christian August of Saxe-Zeitz (9 October 1666 in Moritzburg – 23 August 1725 in Regensburg), was a German prince of the House of Wettin.
Christian August of Saxe-Zeitz was a Teutonic Knight, the Primas of Hungary and finally a cardinal.
On 22 May 1712 he crowned Charles VI, Holy Roman Emperor as the King of Hungary and on 18 October 1714 also his wife Elisabeth Christine of Brunswick-WolfenbĂĽttel in St.