Wulfhilde Billung of Saxony (1072 – 29 December 1126) was the eldest daughter of Magnus, Duke of Saxony and his wife, Sophia of Hungary.

In about 1095 she married Duke Henry IX of Bavaria.

[1] As a result of this marriage, part of the Billung possessions came into the hands of the House of Guelph.

They had the following children: Wulfhilde died in 1126 and was buried at Weingarten Abbey.

This article about a member of the German nobility is a stub.