Liberty Leading the People (French: La Liberté guidant le peuple [la libɛʁte ɡidɑ̃ lə pœpl]) is a painting of the Romantic era by the French artist Eugène Delacroix, commemorating the July Revolution of 1830 that toppled King Charles X (r. 1824–1830). A bare-breasted "woman of the people" with a Phrygian cap personifying the concept and Goddess of Liberty, accompanied by a young boy brandishing a pistol in each hand, leads a group of various people forward over a barricade and the bodies of the fallen while holding aloft the flag of the French Revolution—the tricolour, which again became France's national flag after these events—in one hand, and brandishing a bayonetted musket with the other. The figure of Liberty is also viewed as a symbol of France and the French Republic known as Marianne. The painting is sometimes wrongly thought to depict the French Revolution of 1789.

Liberty Leading the People is exhibited in the Louvre in Paris.

By the time Delacroix painted Liberty Leading the People, he was already the acknowledged driving force of the Romantic school in French painting. Delacroix, who was born as the Age of Enlightenment was giving way to the ideas and style of romanticism, rejected the emphasis on precise drawing that characterised the academic art of his time, and instead gave a new prominence to freely brushed colour.

Delacroix painted this work in the autumn of 1830. In a letter to his brother dated 21 October, he wrote: "My bad mood is vanishing thanks to hard work. I've embarked on a modern subject—a barricade. And if I haven't fought for my country at least I'll paint for her." The painting was first exhibited at the official Paris Salon of 1831.

Delacroix depicted Liberty as both an allegorical goddess-figure and a robust woman of the people. The mound of corpses and wreckage acts as a kind of pedestal from which Liberty strides, barefoot and bare-breasted, out of the canvas and into the space of the viewer. The Phrygian cap she wears had come to symbolize liberty during the first French Revolution of 1789. The painting has been seen as a marker of the end of the Age of Enlightenment, as many scholars see the end of the French Revolution as the start of the Romantic era.

The fighters are from a mixture of social classes, ranging from the bourgeoisie represented by the young man in a top hat, a student from the prestigious École Polytechnique wearing the traditional bicorne, to the revolutionary urban worker, as exemplified by the boy holding pistols. What they have in common is the fierceness and determination in their eyes. Aside from the flag held by Liberty, a second, minute tricolore can be discerned in the distance flying from the towers of Notre-Dame.

The identity of the man in the top hat has been widely debated. Modern art historians refute the idea that it was a self-portrait of Delacroix. In the late 19th century, it was suggested the model was the theatre director Étienne Arago; others have suggested the future curator of the Louvre, Frédéric Villot; but there is no firm consensus on this point.

Several of the figures are probably borrowed from a print by popular artist Nicolas Charlet, a prolific illustrator who Delacroix believed captured, more than anyone else, the peculiar energy of the Parisians.