| Johanna Elisabeth of Nassau-Hadamar | |
| Noble Family: | House of Nassau |
| Father: | John Louis, Prince of Nassau-Hadamar |
| Mother: | Ursula of Lippe-Detmold |
| Spouse: | Frederick, Prince of Anhalt-Harzgerode |
| Birth Date: | 17 January 1619 |
| Birth Place: | Dillenburg |
| Death Place: | Harzgerode |
Johanna Elisabeth von Nassau-Hadamar (17 January 1619, in Dillenburg – 2 March 1647, in Harzgerode) was a princess of Nassau-Hadamar by birth, and by marriage a princess of Anhalt-Harzgerode.
Her father was Prince John Louis of Nassau-Hadamar, her mother was Ursula of Lippe-Detmold, a daughter of Count Simon VI of Lippe.
She married Prince Frederick of Anhalt-Harzgerode on 10 August 1642 in Bückeburg. She was his first wife. They had the following children: