Jean-François Du Cheyron, chevalier du Pavillon (29 September 1758 – 12 April 1782) was a French naval tactician and Capitaine du vaisseau, hero of the American Revolutionary War. He is considered one of the principal creators of naval communications before the era of radio. Commanding the ship Triomphant he was killed at the Battle of the Saintes after being hit by a cannonball.