Quedlinburg Abbeywas a house of secular canonesses (Frauenstift) in Quedlinburg, Saxony-Anhalt, Germany. It was founded in 936 on the initiative of Saint Mathilda, the widow of Henry the Fowler, as his memorial. For many centuries it enjoyed great prestige and influence.
Quedlinburg Abbey was an Imperial Estate and one of the approximately forty self-ruling Imperial Abbeys of the Holy Roman Empire.