Les Misérables (translated variously from French as The Miserable Ones, The Wretched, The Poor Ones, The Wretched Poor, The Victims) (1862) is a novel by French author Victor Hugo and is widely considered one of the greatest novels of the 19th century. It follows the lives and interactions of several French characters over a twenty-year period in the early 19th century, starting in 1815, the year of Napoleon's final defeat at Waterloo.

The novel focuses on the struggles of ex-convict Jean Valjean and his experience of redemption. It examines the nature of law and grace, and expounds upon the history of France, architecture of Paris, politics, moral philosophy, antimonarchism, justice, religion, and the types and nature of romantic and familial love. The story is historical fiction because it contains factual, historic events, including the Paris Uprising of 1832 (often mistaken for the much earlier French Revolution).
Les Misérables is known to many through its numerous stage and screen adaptations, such as the stage musical of the same name, sometimes abbreviated "Les Mis".