François-Henri d'Harcourt (12 January 1726 – 22 July 1802) was Count Lillebonne, a French general, duke and peer of France .
D'Harcourt was born in Paris. He married, 13 June 1752, Catherine Scholastica Aubusson, (1733-1815). Their daughter Anne (1753-1778) married Victurnien-Jean-Baptiste de Rochechouart, Duke of Mortemarts. He died in Staines, England, aged 76.
On December 5, 2013, in Bonhams New Bond Street, London, Salerooms a Fragonard portrait of d'Harcourt sold for £17,106,500 Sterling - US $28,058,081 - setting a World record price for the artist at auction. The previous record was £5,300,000 for a painting sold in London in 1999. The sum paid is also the highest price for an Old Master Painting sold at auction anywhere in the World in 2013. Bonhams' sale of paintings and sculpture from the collection of the German philanthropist, the late Dr Gustav Rau, raised more than £19 million, with the proceeds benefiting the Foundation of the German Committee for UNICEF – for the children of the world. 
- "Fragonard Portrait Fetches Record $27.9 Million in London". Bloomberg.com. 6 December 2013. Retrieved 24 October 2014.
- "Fragonard Portrait on View at Bonhams Geneva Prior to Benefit Sale". artfixdaily.com/. 8 August 2013. Retrieved 11 August 2013.