| Duchess consort of Anhalt | |
| Antoinette of Saxe-Altenburg | |
| Full Name: | Antoinette Charlotte Marie Josephine Karoline Frida |
| Spouse: | Friedrich I, Duke of Anhalt |
| Issue: | Leopold, Hereditary Prince of Anhalt Friedrich II, Duke of Anhalt Elisabeth, Grand Duchess of Mecklenburg-Strelitz Eduard, Duke of Anhalt Prince Aribert of Anhalt Alexandra, Princess of Schwarzburg |
| House: | Wettin |
| Father: | Prince Eduard of Saxe-Altenburg |
| Mother: | Amalie of Hohenzollern-Sigmaringen |
| Birth Date: | 17 April 1838 |
| Birth Place: | Bamberg, Kingdom of Bavaria |
| Death Place: | Berchtesgaden, Kingdom of Bavaria, German Empire |
Princess Antoinette of Saxe-Altenburg (17 April 1838 – 13 October 1908) was a princess of Saxe-Altenburg by birth and Duchess of Anhalt by marriage.
Antoinette was the second child of Prince Eduard of Saxe-Altenburg (1804-1852) from his first marriage with Amalie (1815-1841), daughter of Karl, Prince of Hohenzollern-Sigmaringen.
She married on 22 April 1854 in Altenburg the future Friedrich I, Duke of Anhalt (1831-1904). The marriage was for dynastic reasons and Antoinette married one of the richest German princes. On the occasion of the marriage was coined a commemorative medal.
After falling ill with diphtheria in the spring of 1890, during which she was cared for by Lutheran deaconesses in Halle, she campaigned for the Duke of Anhalt to donate a plot of land in Gernrode to the Halle deaconeesses in autumn 1890 for the construction of a convalescent home. Two years later, together with her daughter-in-law Princess Marie of Baden, she marked the foundation of the Anhaltische Diakonissenanstalt.[1]
The streets Antoinettenweg in Selketal, Antoinettenstraße in Dessau and the Antoinettenlyceum school are named after the Duchess.
Antoinette and Friedrich had six children: