Madame Bovary (1856) is Gustave Flaubert's debut novel. The story focuses on a doctor's wife, Emma Bovary, who has adulterous affairs and lives beyond her means in order to escape the banalities and emptiness of provincial life. Though the basic plot is rather simple, even archetypal, the novel's true art lies in its details and hidden patterns. Flaubert was a notorious perfectionist and claimed always to be searching for le mot juste ("the precise word").

When it was first serialized in La Revue de Paris between 1 October 1856 and 15 December 1856, the novel was attacked for obscenity by public prosecutors. The resulting trial, held in January 1857, made the story notorious. After Flaubert's acquittal on 7 February 1857, Madame Bovary became a bestseller when it was published as a single volume in April 1857. Flaubert's masterpiece is now considered a seminal work of realism and one of the most influential novels ever written. In fact, the notable British-American critic James Wood writes in How Fiction Works: "Flaubert established for good or ill, what most readers think of as modern realist narration, and his influence is almost too familiar to be visible".

Long established as one of the greatest novels ever written, the book has often been described as a "perfect" work of fiction. Henry James writes: "Madame Bovary has a perfection that not only stamps it, but that makes it stand almost alone; it holds itself with such a supreme unapproachable assurance as both excites and defies judgment." Giorgio de Chirico said that in his opinion "from the narrative point of view, the most perfect book is Madame Bovary by Flaubert".

Gustave Flaubert (1821-1880) was an influential French writer widely considered one of the greatest novelists in Western literature. He is known especially for his first published novel, Madame Bovary (1857), for his Correspondence, and for his scrupulous devotion to his style and aesthetics. The celebrated short story writer Maupassant was a protégé of Flaubert.