Frédéric de Coninck (2 December 1740, The Hague – 4 September 1811, Dronninggaard) was a Dutch merchant active in Copenhagen, to which he moved in 1763 to set up a foreign trade and shipping company. He became one of Denmark's largest shipping owners, with a fleet of 64 vessels at the company's height. He took advantage of Denmark's neutrality in the Napoleonic Wars to boost his and its trade, but his company got into difficulties during and after the English Wars, having to shut down in 1822.
In the 1790s he had a house built — De Coninck House — that still stands in Copenhagen.
His daughter Marie Henriette married the Danish merchant Christian Vilhelm Duntzfelt. Their great-grandson was the American doctor Henry Jacques Garrigues.