Vincent Martel Deconchy (21 January 1768 – 26 August 1823) commanded a French brigade in Spain and Italy during the Napoleonic Wars. He joined the army in 1792 during the French Revolution and fought in several battles in the north. After being part of the force occupying the Batavian Republic, he gained promotion for heroism at the Battle of Castricum in 1799. He served as an aide-de-camp during the battles of Marengo and the Mincio in 1800.