The Defence of the Gauls by Vercingetorix (French: La Défense des Gaules par Vercingétorix) is an 1855 history painting by the French artist Théodore Chassériau. It depicts the Battle of Gergovia, with the Gaullish warrior Vercingetorix leading his forces to victory over the Roman Empire.
Chassériau exhibited the painting at the Salon of 1855, part of the wider Exposition Universelle held in Paris. The painting is in the collection of the Musée d'Art Roger-Quilliot in Clermont-Ferrand having been acquired in 1890.