Catherine of Saxe-Lauenburg, Duchess of Mecklenburg
| Catherine of Saxe-Lauenburg | |
|---|---|
| Born | circa 1400 |
| Died | 22 September 1450 |
| Spouse | John VII of Werle John IV, Duke of Mecklenburg |
| Issue | Henry IV, Duke of Mecklenburg John V, Duke of Mecklenburg |
| House | House of Ascania |
| Father | Eric IV, Duke of Saxe-Lauenburg |
| Mother | Sophia von Braunschweig-Lüneburg |
Catherine of Saxe-Lauenburg (c. 1400 – 22 September 1450) was a Baroness consort of Werle-Güstrow, a Duchess consort of Mecklenburg, and Regent of the Duchy of Mecklenburg from 1422 to 1436 as the guardian of her under age sons.