The Lumières (literally in English: The Lights) was a cultural, philosophical, literary and intellectual movement beginning in the second half of the 17th century, originating in western Europe and spreading throughout the rest of Europe. It included philosophers such as Baruch Spinoza, David Hume, John Locke, Edward Gibbon, Voltaire, Jean-Jacques Rousseau, Denis Diderot, Pierre Bayle and Isaac Newton. This movement is influenced by the scientific revolution in southern Europe arising directly from the Italian renaissance with people like Galileo Galilei. Over time it came to mean the Siècle des Lumières, in English the Age of Enlightenment.

Members of the movement saw themselves as a progressive élite, and battled against religious and political persecution, fighting against what they saw as the irrationality, arbitrariness, obscurantism and superstition of the previous centuries. They redefined the study of knowledge to fit the ethics and aesthetics of their time. Their works had great influence at the end of the 18th century, in the American Declaration of Independence and the French Revolution.

This intellectual and cultural renewal by the Lumières movement was, in its strictest sense, limited to Europe. These ideas were well understood in Europe, but beyond France the idea of "enlightenment" had generally meant a light from outside, whereas in France it meant a light coming from within oneself.

In the most general terms, in science and philosophy, the Enlightenment aimed for the triumph of reason over faith and belief; in politics and economics, the triumph of the bourgeois over nobility and clergy.