无套裤汉（法语：sans-culotte，法语发音：[sɑ̃kyˈlɔt]），又称长裤汉，是十八世纪末法国大革命时期对广大革命群众流行的称呼，主要为城市劳动者。根据主流理论他们的名字来源于工人阶级多穿着长至足部的长裤（pantalon）而非资产阶级时尚的仅至膝盖的裤子（culotte）。

无套裤汉实际上常用作形容雅各宾派的大革命激进分子。Eric Hobsbawm说无套裤汉是“劳动阶层、小手工业者、小商店主、企业家的革命力量”。无套裤汉由本地的政治俱乐部带领，是法国大革命战争早期的革命中坚力量。

The sans-culottes (French: [sɑ̃kylɔt], "without culottes") were the common people of the lower classes in late 18th century France, a great many of whom became radical and militant partisans of the French Revolution in response to their poor quality of life under the Ancien Régime. The appellation sans-culottes refers to their lower class status; culottes were the fashionable silk knee-breeches of the nobility and bourgeoisie, as distinguished from the working class sans-culottes, who traditionally wore pantalons, or trousers, instead. The sans-culottes, most of them peasants and urban labourers, served as the driving popular force behind the revolution. Though ill-clad and ill-equipped, they made up the bulk of the Revolutionary army during the early years of the French Revolutionary Wars.