The Tennis Court Oath (French: Le Serment du Jeu de paume) is an incomplete painting by the French Neoclassical artist Jacques-Louis David, painted between 1790 and 1794 and showing the titular Tennis Court Oath at Versailles, one of the foundational events of the French Revolution.
Political reversals and financial difficulties meant that David was never able to finish the canvas, which measures 400 by 660 cm and is now in the Musée national du Château de Versailles.