| Magdalene Sibylle of Saxe-Weissenfels | |
|---|---|
| Duchess consort of Saxe-Eisenach | |
| Reign | 1708–1726 |
| Born |
3 September 1673 Halle |
| Died | 28 November 1726 (aged 53) Eisenach |
| Spouse | John William III, Duke of Saxe-Eisenach |
| Issue | Christiane Wilhelmine, Princess of Nassau-Usingen |
| Father | Johann Adolf I, Duke of Saxe-Weissenfels |
| Mother | Johanna Magdalena of Saxe-Altenburg |
Magdalene Sibylle of Saxe-Weissenfels (3 September 1673 – 28 November 1726), was a German noblewoman member of the House of Wettin (Albertine line) and by marriage Duchess of Saxe-Eisenach.
Born in Halle, she was the oldest daughter and first child of Duke Johann Adolf I of Saxe-Weissenfels and his wife Johanna Magdalena, the daughter of Duke Frederick William II of Saxe-Altenburg. She was named after her paternal great-grandmother, Duchess Magdalene Sibylle of Prussia.
In Weissenfels on 28 July 1708, Magdalene Sibylle married Duke John William III, Duke of Saxe-Eisenach as his third wife. They had three children, of whom only one survive adulthood:
She died in Eisenach aged 53 and was buried in the Georgenkirche, Eisenach.