Zeithain is a municipality in the district of Meißen, in Saxony, Germany.

Historically, it is known for the Zeithain Encampment (Zeithainer Zeltlager or Zeithainer Lustlager), which was a huge agglomeration of tents and troops, involving the whole 27,000-men-strong army of August the Strong. This event took place from 1 to 26 June 1730.