Lutgard of Salzwedel or Liutgard/Luitgard of Stade, (b. c. 1110, murdered 1152) was Queen of Denmark as the wife of King Eric III.
Lutgard was born to Richardis, Countess of Sponheim-Lavanttal, and Count Rudolf I of Stade and Ditmarsh (d. 1124), Margrave of the Northern March, seated in Salzwedel.
Lutgard's paternal grandfather was Margrave Lothair Udo II (of the Udonids, German: Udonen).
However, in 1148 Hartwig stipulated with the cathedral chapter his election as Archbishop of Bremen in return for his bequest of the county to the archdiocese on his death, thus disinheriting Lutgard's children.
Ministeriales of Bernard of Rothenburg, Bishop of Hildesheim, eventually at his instigation, murdered Count Herman, who was violent and ambitious to seize further territories, and the pregnant Lutgard in Winzenburg in the night between 29 and 30 January 1152.