Rahel Antonie Friederike Varnhagen (German: ['?a??l 'fa?nha?g?n]), née Levin, later Robert (19 May 1771 – 7 March 1833)) was a German writer who hosted one of the most prominent salons in Europe during the late 18th and early 19th centuries.
She is the subject of a celebrated biography, Rahel Varnhagen: The Life of a Jewess (1957), written by Hannah Arendt.
Arendt cherished Varnhagen as her "closest friend, though she ha[d] been dead for some hundred years".
The asteroid 100029 Varnhagen is named in her honour.