The Belle Époque (French pronunciation: [bɛlepɔk]) or La Belle Époque (French for 'The Beautiful Era') was a period of French and European history that began after the end of the Franco-Prussian War in 1871 and continued until the outbreak of World War I in 1914. Occurring during the era of the French Third Republic, it was a period characterised by optimism, enlightenment, regional peace, economic prosperity, nationalism, colonial expansion, and technological, scientific and cultural innovations. In this era of France's cultural and artistic climate (particularly in Paris of that time), the arts markedly flourished, and numerous masterpieces of literature, music, theatre and visual art gained extensive recognition.

The Belle Époque was so named in retrospect, when it began to be considered a continental European "Golden Age" in contrast to the horrors of the Napoleonic Wars and World War I. The Belle Époque was a period in which, according to historian R. R. Palmer, "European civilisation achieved its greatest power in global politics, and also exerted its maximum influence upon peoples outside Europe."