|Intro||Duchess by marriage of Schleswig-Holstein-Sønderburg-Norburg|
|Birth||10 November 1608, Zerbst, Germany|
|Death||2 November 1681, Sønderborg, Denmark (aged 73 years)|
Eleonore of Anhalt-Zerbst (10 November 1608, in Zerbst – 2 November 1681, in Østerholm Castle, Als) was a member of the House of Ascania and a princess of Anhalt-Zerbst by birth and by marriage Duchess of Schleswig-Holstein-Sonderburg-Norburg.
Eleanor was a daughter of Prince Rudolph of Anhalt-Zerbst (1576-1621) from his first marriage to Dorothea Hedwig (1587-1609), daughter of Duke Heinrich Julius of Brunswick-Wolfenbüttel.
She married on 15 February 1632 in Norburg with Duke Frederick of Schleswig-Holstein-Sønderburg-Norburg (1581-1658). She was his second wife. The ducal court in Nordborg had meager financial resources and Eleanor's children had to seek a career elsewhere. The theologian Christoph Wilhelm Megander acted as her confessor from 1653 onwards. During the reign of her step-son John Bogislaw, the duchy experienced a bankruptcy and the fief was terminated by Denmark.
Eleanor died in 1681 on her widow's seat Østerholm Castle on Als and was buried beside her husband.
From her marriage Eleanor had the following children:
- Unnamed child (1633–1633)
- Elisabeth Juliane (1634–1704)
- married in 1656 Duke Anton Ulrich of Brunswick-Wolfenbüttel (1633–1714)
- Dorothea Hedwig, abbess of Gandersheim Abbey from 1665 to 1678
- married in 1678 Count Christopher of Rantzau-Hohenfeld (1625–1696)
- Christian Augustus (1639–1687), English admiral
- Louise Amöna (1642–1685)
- married in 1665 Count John Frederick I of Hohenlohe-Neuenstein-Oehringen (1617–1702)
- Rudolph Frederick (1645–1688)
- married in 1680 Countess Bibiane of Promnitz (1649–1685)