| Dorothea of Denmark | |
| House: | Oldenburg |
| Father: | Christian III of Denmark |
| Mother: | Dorothea of Saxe-Lauenburg |
| Spouse: | William, Duke of Brunswick-Lüneburg |
| Issue: | Sophie Ernest II Elisabeth Christian August I Dorothea Clara Anne Margaret Frederick IV Marie Magnus George John Sybille |
| Birth Place: | Kolding |
| Death Place: | Winsen |
Princess Dorothea of Denmark (29 June 1546 – 6 January 1617) was the Duchess of Brunswick-Lüneburg from 1561 until 1592 as the consort of Duke William the Younger.[1] She was regent for her son George from 1592 to 1596.
Born in Kolding, Dorothea was the youngest child of Christian III of Denmark-Norway and Dorothea of Saxe-Lauenburg. She married William, Duke of Brunswick-Lüneburg on 12 October 1561.
When her husband died in 1592, she became regent for her under age son George. She had a deep mistrust of the councillors because of their ill management of her husband's estates during his insanity. Dorothea was known as a capable and energetic regent.
She died in Winsen, Germany at the age of 70.