| Dorothea Sophia | |
|---|---|
 | |
| Princess-Abbess of Quedlinburg | |
| Reign | 21 April 1618 - 10 February 1645 |
| Predecessor | Dorothea |
| Successor | Anna Sophia I |
| Born | 19 December 1587 Weimar |
| Died | 10 February 1645 (aged 57) Quedlinburg Abbey |
| House | Wettin |
| Father | Friedrich Wilhelm I, Duke of Saxe-Weimar |
| Mother | Sophie of Württemberg |
| Religion | Lutheran |
Duchess Dorothea Sophia of Saxe-Altenburg (19 December 1587 – 10 February 1645) was Princess-Abbess of Quedlinburg.
She was the fourth child and second daughter of Friedrich Wilhelm I, Duke of Saxe-Weimar, and his first wife, Sophie of Württemberg.