Donnet was a French manufacturing company of the early twentieth century. Founded as Société des Établissements Donnet-Denhaut by Jérôme Donnet (formerly of Donnet-Lévêque) and François Denhaut at Neuilly-sur-Seine in 1914, the firm manufactured a highly successful line of patrol flying boats (the Donnet-Denhaut flying boat series) for the French Navy. The company became known simply as Donnet after designer Denhaut left it in 1919 (replaced by Maurice Percheron), but did not continue to build aircraft for long afterwards.