| Consort: | yes |
| Duchess Magdalene Sibylle of Prussia | |
| Succession: | Electress consort of Saxony |
| Reign: | 23 June 1611 - 8 October 1656 |
| House: | House of Hohenzollern |
| Father: | Albert Frederick, Duke of Prussia |
| Mother: | Marie Eleonore of Cleves |
| Issue: | Sophie Eleonore, Landgravine of Hesse-Darmstadt Marie Elisabeth, Duchess of Holstein-Gottorp John George II, Elector of Saxony August, Duke of Saxe-Weissenfels Christian I, Duke of Saxe-Merseburg Magdalene Sibylle, Duchess of Saxe-Altenburg Maurice, Duke of Saxe-Zeitz |
| Birth Place: | Königsberg |
| Death Place: | Dresden |
Magdalene Sibylle of Prussia (31 December 1586 - 12 February 1659) was an Electress of Saxony as the spouse of John George I, Elector of Saxony.
Magdalene Sibylle was born in Königsberg, the daughter of Albert Frederick, Duke of Prussia and Marie Eleonore of Cleves. She married John George on 19 July 1607 in Torgau.
Magdalene Sibylle was a friend of the Swedish queen Maria Eleonora of Brandenburg, her niece, and was interested in painting, poetry and gardening. Magdalene Sibylle used Swedish prisoners of war to work on the Dresdner Festungsbau ("Dresden fortress").
As a widow in 1656, Magdalene Sibylle retired to the Dresdner Frau Kurfürstin-Haus and died in Dresden in 1659.
Magdalene Sibylle had ten children:
|-