Christina of Denmark (Danish: Christine af Danmark; November 1521 – 10 December 1590) was a Danish princess, the younger surviving daughter of King Christian II of Denmark and Norway and Isabella of Austria.
She became the duchess-consort of Milan, then duchess-consort of Lorraine.
She served as the regent of Lorraine from 1545 to 1552 during the minority of her son.
She was also a claimant to the thrones of Denmark, Norway and Sweden in 1561-1590.
Finally, she was sovereign Lady of Tortona in 1578-1584.