Pierre-Charles-Jean-Baptiste-Silvestre de Villeneuve was a French naval officer during the Napoleonic Wars. He was in command of the French and the Spanish fleets that were defeated by Horatio Nelson at the Battle of Trafalgar.

The Battle of Trafalgar was a naval engagement that took place on 21 October 1805 between the British Royal Navy and the combined fleets of the French and Spanish Navies during the War of the Third Coalition of the Napoleonic Wars (1803–1815).