| Countess Louise Sophie | |
| Countess consort of Nassau-Ottweiler | |
| Noble Family: | House of Hanau (by birth) House of Nassau (by marriage) |
| Father: | Johann Reinhard II, Count of Hanau-Lichtenberg |
| Mother: | Countess Palatine Anna Magdalena of Birkenfeld-Bischweiler |
| Spouse: | Frederick Louis, Count of Nassau-Ottweiler |
| Birth Place: | Bischofsheim am Hohen Steg |
| Death Place: | Ottweiler |
Countess Louise Sophie of Hanau-Lichtenberg (11 April 1662 in Bischofsheim am Hohen Steg - 9 April 1751 in Ottweiler) was a daughter of Johann Reinhard II, Count of Hanau-Lichtenberg (1628–1666) and Countess Palatine Anna Magdalena of Birkenfeld-Bischweiler (1640–1693).
She married on 27 September 1697 to Frederick Louis, Count of Nassau-Ottweiler (13 November 1651 - 25 May 1728) as his second wife. The union produced one child, a stillborn son, on 6 October 1698.