The Red Badge of Courage is a war novel by American author Stephen Crane (1871–1900). Taking place during the American Civil War, the story is about a young private of the Union Army, Henry Fleming, who flees from the field of battle. Overcome with shame, he longs for a wound, a "red badge of courage," to counteract his cowardice. When his regiment once again faces the enemy, Henry acts as standard-bearer, who carries a flag.

The novel is known for its distinctive style, which includes realistic battle sequences as well as the repeated use of color imagery, and ironic tone. Separating itself from a traditional war narrative, Crane's story reflects the inner experience of its protagonist (a soldier fleeing from combat) rather than the external world around him. Also notable for its use of what Crane called a "psychological portrayal of fear", the novel's allegorical and symbolic qualities are often debated by critics. Several of the themes that the story explores are maturation, heroism, cowardice, and the indifference of nature. The Red Badge of Courage garnered widespread acclaim, what H. G. Wells called "an orgy of praise", shortly after its publication, making Crane an instant celebrity at the age of twenty-four. The novel and its author did have their initial detractors, however, including author and veteran Ambrose Bierce. Adapted several times for the screen, the novel became a bestseller. It has never been out of print and is now thought to be Crane's most important work and a major American text.

On a cold day, the fictional 304th New York Infantry Regiment awaits battle beside a river. Eighteen-year-old Private Henry Fleming, remembering his romantic reasons for enlisting as well as his mother's resulting protests, wonders whether he will remain brave in the face of fear or turn and run. He is comforted by one of his friends from home, Jim Conklin, who admits that he would run from battle if his fellow soldiers also fled. During the regiment's first battle, Confederate soldiers charge, but are repelled. The enemy quickly regroups and attacks again, this time forcing some of the unprepared Union soldiers to flee. Fearing the battle is a lost cause, Henry deserts his regiment. It is not until after he reaches the rear of the army that he overhears a general announcing the Union's victory.