Caroline von Humboldt (23 February 1766, Minden - 26 March 1829, Berlin), née Carolina Friederica von Dacheröden, was a German salonnière and art historian.
She was the daughter of Karl Friedrich von Dacheröden (died 20 November 1809), chamber-president of the Kingdom of Prussia, and his wife Ernestine Friderike, countess of Hopfgarten (died 1 May 1774). She grew up in Erfurt and her parents' estates in Burgörner and Auleben, where she befriended the von Lengefeld sisters, Caroline (later one of her best friends) and Charlotte (later wife of the playwright Friedrich Schiller).
On 29 June 1791 she married count Wilhelm von Humboldt in Erfurt. Their marriage was an unconventional one and both allowed each other many freedoms. Until 1797 they lived in Jena next door to Schiller but they later lived apart for several years until from 1819 they shared Wilhelm's family home at Schloss Tegel. Caroline's only brother Ernst died childless in 1806. Caroline and Wilhelm had eight children:
Due to Wilhelm's diplomatic work they spent prolonged periods in Paris (1797-1801, 1804), Rome (1802–1803, 1805–1810, 1817–1819) and Vienna (1810-1814), where their house became known as a social and cultural hub. She took her three children on a 7-month trip from Paris to Spain, where she catalogued and wrote about Spanish artworks - her works on the topic were praised by Goethe, who published some of them.
Her favourite city was Rome, where she was in contact with several German and Danish artists living in the city (Gottlieb Schick, Christian Friedrich Tieck, Bertel Thorvaldsen, Wilhelm von Schadow, Karl Wilhelm Wach), financially supporting them and buying several of their works. She had a particularly intense friendship with the sculptor Christian Daniel Rauch, whilst Angelika Kauffmann and Louis I of Bavaria also stayed in her house.