Caroline Felizitas of Leiningen-Dagsburg-Falkenburg (22 May 1734 – 8 May 1810) was a German Imperial countess.

She was born in Heidesheim, as the youngest daughter of Count Christian Karl Reinhard of Leiningen-Dagsburg-Falkenburg and his wife, Countess Katherina Polyxena of Solms-Rödelheim and Assenheim (1702-1765).

She married Charles William, Prince of Nassau-Usingen, son of Charles, Prince of Nassau-Usingen and Princess Christiane Wilhelmine of Saxe-Eisenach, on 16 April 1760.

They had four children: Caroline died in Frankfurt.

All 14 of Caroline’s immediate ancestors had the same social status: counts and countesses.