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Caroline of Nassau-Saarbrücken
Born	(1704-08-12)12 August 1704
Died	25 March 1774(1774-03-25) (aged 69) Darmstadt
Spouse	Christian III of Zweibrücken ​ ​ (m. 1719; died 1735)​
Issue	Caroline, Landgravine of Hesse-Darmstadt Christian IV, Duke of Zweibrücken Frederick Michael, Count Palatine of Birkenfeeld-Bishwiller-Rappolstein Christiane, Princess of Waldeck-Pyrmont
House	Nassau
Father	Louis Crato of Nassau-Saarbrücken
Mother	Philippine Henriette of Hohenlohe

Countess Caroline of Nassau-Saarbrücken (12 August 1704 – 25 March 1774) was Countess Palatine of Zweibrücken by marriage.

She was the daughter of Count Louis Crato of Nassau-Saarbrücken (died 1713) and Countess Philippine Henriette of Hohenlohe (1679–1751).

On 21 September 1719, at the age of 15, she married her 44-year-old godfather, Christian III of Zweibrücken. The wedding took place at Castle Lorenzen in Nassau. This marriage produced four children:

• Caroline Henriette Christine (1721–1774), called "the great landgravine"

married to Landgrave Louis IX of Hesse-Darmstadt

• Christian IV (1722–1775), Count Palatine and Duke of Palatinate-Zweibrücken
• Frederick Michael (1724–1767), Count Palatine of Birkenfeld
• Christiane Henriette (1725–1816), Countess Palatine of Zweibrücken-Birkenfeld and by marriage Princess of Waldeck-Pyrmont

When Christian III died in 1735, Caroline took over the Regency for five years, with the consent of Emperor Charles VI, until her son Christian IV came of age.

From 1744 to 1774 she lived at Bergzabern Castle. She died on 25 March 1774 in Darmstadt at the age of 69. Her grave is in the City Church in Darmstadt.

• Entry for Caroline, Princess of Nassau in GeneaNet