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Magdalena Sibylla of Hesse-Darmstadt
Duchess consort of Württemberg
Tenure	2 July 1674 – 23 June 1677
Born	(1652-04-28)28 April 1652 Darmstadt
Died	11 August 1712(1712-08-11) (aged 60) Kirchheim unter Teck
Spouse	William Louis, Duke of Württemberg ​ ​ (m. 1673; died 1677)​
Issue	Eleonore Dorothea Eberhardine Luise Eberhard Louis, Duke of Württemberg Magdalena Wilhelmine, Margravine of Baden-Durlach
Father	Louis VI, Landgrave of Hesse-Darmstadt
Mother	Maria Elisabeth of Holstein-Gottorp
Religion	Lutheran

Landgravine Magdalena Sibylla of Hesse-Darmstadt (28 April 1652 – 11 August 1712) was regent of the Duchy of Württemberg from 1677 to 1693, and was a prominent German composer of baroque hymns.

Magdalena Sibylla, Duchess of Württemberg was born in Darmstadt, the daughter of Louis VI, Landgrave of Hesse-Darmstadt and Duchess Maria Elisabeth of Holstein-Gottorp. As a child she lost her mother and came into the care of her aunt, the Queen Dowager Hedwig Eleonora of Sweden. In Stockholm, she manifested deep religious beliefs. On the occasion of a visit to the Württemberg crown prince William Louis she became engaged to him. They married on 6 November 1673 in Darmstadt.

Just six months after the ceremony Duke Eberhard III died and her husband Wilhelm Ludwig inherited the throne of Württemberg. In 1677 he, too, died of a heart attack. Thus, the 25-year-old Magdalena Sibylla became Duchess of Württemberg and regent for her minor son Eberhard Ludwig, who would take the throne in 1693, at the age of 16.

Through piety and prudence in all decisions, she enjoyed great popularity. Her religion is reflected in the numerous hymns she wrote, quite a few of which found a permanent place in Protestant hymnals. From 1690 to 1692, she employed the composer Johann Pachelbel. After the accession of the heir apparent, she retreated to Kirchheim castle, where she died.

• Eleonore Dorothea (1674–1683)
• Eberhardine Luise (1675–1707)
• Eberhard Louis (1676–1733), the next Duke of Württemberg
• Magdalena Wilhelmine (born November 7, 1677 – died October 30, 1742) - married to Charles III William

• Christian View of the Troubled Times, Nuremberg 1680 (prose devotions with additional verse)
• New Increased ... Devotional Sacrifice, Stuttgart 1683 (184 hymns, and further editions under different titles)
• The Heart Crucified With Jesus, 3 vols, Stuttgart and elsewhere in 1691 (prayers and songs)
• Spiritual Apothecary for the Sick, Stuttgart 1703 (devotional book)

• Gerhard Dünnhaupt: "Magdalena Sibylla of Württemberg (1652-1712)", in: Personal Bibliographies of the Pressures of the Baroque, Vol 4, Stuttgart: Hiersemann 1991, p. 2633-37. ISBN 3-7772-9122-6
• L. and (1884), "Magdalene Sibylle", Allgemeine Deutsche Biographie (in German), vol. 20, Leipzig: Duncker & Humblot, pp. 49–50
• Werner Raupp (Ed.): Gelebter Glaube. Erfahrungen und Lebenszeugnisse aus unserem Land. Ein Lesebuch, Metzingen/Württ. 1993, S. 96–100, 385 (Introd., Source text, Further Reading).