Waldemar I, Prince of Anhalt-Zerbst

Waldemar I, Prince of Anhalt-Zerbst (died 7 January 1368) was a German prince of the House of Ascania and ruler of the principality of Anhalt-Zerbst.

He was the youngest son of Albert I, Prince of Anhalt-Zerbst, by his second wife Agnes, daughter of Conrad, Margrave of Brandenburg-Stendal.