| Charlotte Amalia of Nassau-Dillenburg | |
| Noble Family: | House of Nassau |
| Father: | Henry, Prince of Nassau-Dillenburg |
| Mother: | Dorothea Elisabeth of Brieg |
| Spouse: | William Henry, Prince of Nassau-Usingen |
| Birth Date: | 1680 |
| Birth Place: | Dillenburg |
| Death Date: | 1738 |
Charlotte Amalia of Nassau-Dillenburg (1680 in Dillenburg - 1738) was a German regent; regent of Nassau-Usingen from 1718-1732. She was a daughter of Prince Henry of Nassau-Dillenburg and Dorothea Elisabeth, a daughter of George III of Brieg.
In 1706 in Dillenburg, she married Prince William Henry of Nassau-Usingen. The couple had ten children; the first child was born on 3 April 1707 and the last one on 6 March 1718.
William Henry died in 1718, and Charlotte Amalia became regent for her underage son Charles.
Four children reached adulthood: