高卢人（拉丁语：Galli）指的是在铁器时代和罗马高卢时期时聚居于高卢地区的凯尔特人，年代在公元前5世纪到公元3世纪之间。他们的语言高卢语是大陆凯尔特语支的主要组成部分。

前5世纪时高卢人由阿尔卑斯山北部的拉坦诺文化中分离出来，到前4世纪时已经分布到了现在的法国、瑞士、德国南部、奥地利和捷克共和国，并出现在意大利北部、巴尔干半岛、特兰西瓦尼亚和安纳托利亚，控制着罗讷河、塞纳河、莱茵河和多瑙河等重要交通航道。

高卢人从来没有形成过统一的政府，但会集结在一起进行大规模战争。前3世纪时力量达到顶峰。第一次布匿战争之后罗马共和国崛起，并对高卢人形成压迫之势。公元前225年的泰拉蒙战役之后高卢人的力量开始衰退，在前50年代的高卢战争中被征服。此后高卢人就生活在罗马的行省之中。由于罗马文化的影响形成了罗马-高卢文化，最终由于罗马的强势而渐被同化，公元1世纪时已经无法和罗马人相区分了。

The Gauls were Celtic peoples inhabiting Gaul in the Iron Age and the Roman period (roughly from the 5th century BC to the 5th century AD). Their Gaulish language forms the main branch of the Continental Celtic languages.

The Gauls emerged around the 5th century BC as the bearers of the La Tène culture north of the Alps (spread across the lands between the Seine, Middle Rhine and upper Elbe). By the 4th century BC, they spread over much of what is now France, Belgium, Switzerland, Southern Germany, Austria and the Czech Republic by virtue of controlling the trade routes along the river systems of the Rhône, Seine, Rhine, and Danube, and they quickly expanded into Northern Italy, the Balkans, Transylvania and Anatolia. Gaul was never united under a single ruler or government, but the Gallic tribes were capable of uniting their forces in large-scale military operations. They reached the peak of their power in the early 3rd century BC. The rising Roman Republic after the end of the First Punic War increasingly put pressure on the Gallic sphere of influence; the Battle of Telamon of 225 BC heralded a gradual decline of Gallic power over the 2nd century, until the eventual conquest of Gaul in the Gallic Wars of the 50s BC. After this, Gaul became a province of the Roman Empire, and the Gauls were culturally assimilated into a Gallo-Roman culture, losing their tribal identities by the end of the 1st century AD.